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3160 lines
215 KiB
3160 lines
215 KiB
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
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<html><head><title>ADODB Manual</title>
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<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
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<style>
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pre {
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background-color: #eee;
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padding: 0.75em 1.5em;
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font-size: 12px;
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border: 1px solid #ddd;
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}
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</style></head>
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<body bgcolor="#ffffff">
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<h2>ADOdb Library for PHP</h2>
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<p>V4.55 3 Jan 2005 (c) 2000-2005 John Lim (jlim#natsoft.com)</p>
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<p><font size="1">This software is dual licensed using BSD-Style and LGPL. This
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means you can use it in compiled proprietary and commercial products.</font></p>
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<p>Useful ADOdb links: <a href="http://adodb.sourceforge.net/#download">Download</a> <a href="http://adodb.sourceforge.net/#docs">Other Docs</a>
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</p><p><a href="#intro"><b>Introduction</b></a><b><br>
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<a href="#features">Unique Features</a><br>
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<a href="#users">How People are using ADOdb</a><br>
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<a href="#bugs">Feature Requests and Bug Reports</a><br>
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</b><b><a href="#install">Installation</a><br>
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<a href="#mininstall">Minimum Install</a><br>
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<a href="#coding">Initializing Code and Connectioning to Databases</a><br>
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</b><font size="2"> <a href="#dsnsupport">Data Source Name (DSN) Support</a></font> <a href="#connect_ex">Connection Examples</a> <br>
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<b><a href="#speed">High Speed ADOdb - tuning tips</a></b><br>
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<b><a href="#hack">Hacking and Modifying ADOdb Safely</a><br>
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<a href="#php5">PHP5 Features</a></b><br>
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<font size="2"><a href="#php5iterators">foreach iterators</a> <a href="#php5exceptions">exceptions</a></font><br>
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<b> <a href="#drivers">Supported Databases</a></b><br>
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<b> <a href="#quickstart">Tutorials</a></b><br>
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<a href="#ex1">Example 1: Select</a><br>
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<a href="#ex2">Example 2: Advanced Select</a><br>
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<a href="#ex3">Example 3: Insert</a><br>
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<a href="#ex4">Example 4: Debugging</a> <a href="#exrs2html">rs2html
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example</a><br>
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<a href="#ex5">Example 5: MySQL and Menus</a><br>
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<a href="#ex6">Example 6: Connecting to Multiple Databases at once</a> <br>
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<a href="#ex7">Example 7: Generating Update and Insert SQL</a> <br>
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<a href="#ex8">Example 8: Implementing Scrolling with Next and Previous</a><br>
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<a href="#ex9">Example 9: Exporting in CSV or Tab-Delimited Format</a> <br>
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<a href="#ex10">Example 10: Custom filters</a><br>
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<a href="#ex11">Example 11: Smart Transactions</a><br>
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<br>
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<b> <a href="#errorhandling">Using Custom Error Handlers and PEAR_Error</a><br>
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<a href="#DSN">Data Source Names</a><br>
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<a href="#caching">Caching</a><br>
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<a href="#pivot">Pivot Tables</a></b>
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</p><p><a href="#ref"><b>REFERENCE</b></a>
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</p><p> <font size="2">Variables: <a href="#adodb_countrecs">$ADODB_COUNTRECS</a>
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<a href="#adodb_ansi_padding_off">$ADODB_ANSI_PADDING_OFF</a>
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<a href="#adodb_cache_dir">$ADODB_CACHE_DIR</a> <br>
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<a href="#force_type">$ADODB_FORCE_TYPE</a>
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<a href="#adodb_fetch_mode">$ADODB_FETCH_MODE</a>
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<a href="#adodb_lang">$ADODB_LANG</a> <br>
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Constants: </font><font size="2"><a href="#adodb_assoc_case">ADODB_ASSOC_CASE</a>
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</font><br>
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<a href="#ADOConnection"><b> ADOConnection</b></a><br>
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<font size="2">Connections: <a href="#connect">Connect</a> <a href="#pconnect">PConnect</a>
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<a href="#nconnect">NConnect</a> <a href="#isconnected">IsConnected</a><br>
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Executing SQL: <a href="#execute">Execute</a> <a href="#cacheexecute"><i>CacheExecute</i></a>
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<a href="#SelectLimit">SelectLimit</a> <a href="#cacheSelectLimit"><i>CacheSelectLimit</i></a>
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<a href="#param">Param</a> <a href="#prepare">Prepare</a> <a href="#preparesp">PrepareSP</a>
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<a href="#inparameter">InParameter</a> <a href="#outparameter">OutParameter</a>
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<br>
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<a href="#getone">GetOne</a>
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<a href="#cachegetone"><i>CacheGetOne</i></a> <a href="#getrow">GetRow</a> <a href="#cachegetrow"><i>CacheGetRow</i></a>
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<a href="#getall">GetAll</a> <a href="#cachegetall"><i>CacheGetAll</i></a> <a href="#getcol">GetCol</a>
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<a href="#cachegetcol"><i>CacheGetCol</i></a> <a href="#getassoc1">GetAssoc</a> <a href="#cachegetassoc"><i>CacheGetAssoc</i></a> <a href="#replace">Replace</a>
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<br>
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<a href="#executecursor">ExecuteCursor</a>
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(oci8 only)<br>
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Generates SQL strings: <a href="#getupdatesql">GetUpdateSQL</a> <a href="#getinsertsql">GetInsertSQL</a>
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<a href="#concat">Concat</a> <a href="#ifnull">IfNull</a> <a href="#length">length</a> <a href="#random">random</a> <a href="#substr">substr</a>
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<a href="#qstr">qstr</a> <a href="#param">Param</a> <a href="#OffsetDate">OffsetDate</a> <a href="#SQLDate">SQLDate</a>
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<a href="#dbdate">DBDate</a> <a href="#dbtimestamp">DBTimeStamp</a>
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<br>
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Blobs: <a href="#updateblob">UpdateBlob</a> <a href="#updateclob">UpdateClob</a>
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<a href="#updateblobfile">UpdateBlobFile</a> <a href="#blobencode">BlobEncode</a>
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<a href="#blobdecode">BlobDecode</a><br>
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Paging/Scrolling: <a href="#pageexecute">PageExecute</a> <a href="#cachepageexecute">CachePageExecute</a><br>
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Cleanup: <a href="#cacheflush">CacheFlush</a> <a href="#Close">Close</a><br>
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Transactions: <a href="#starttrans">StartTrans</a> <a href="#completetrans">CompleteTrans</a>
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<a href="#failtrans">FailTrans</a> <a href="#hasfailedtrans">HasFailedTrans</a>
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<a href="#begintrans">BeginTrans</a> <a href="#committrans">CommitTrans</a>
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<a href="#rollbacktrans">RollbackTrans</a> <br>
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Fetching Data: </font> <font size="2"><a href="#setfetchmode">SetFetchMode</a><br>
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Strings: <a href="#concat">concat</a> <a href="#length">length</a> <a href="#qstr">qstr</a> <a href="#quote">quote</a> <a href="#substr">substr</a><br>
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Dates: <a href="#dbdate">DBDate</a> <a href="#dbtimestamp">DBTimeStamp</a> <a href="#unixdate">UnixDate</a>
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<a href="#unixtimestamp">UnixTimeStamp</a> <a href="#OffsetDate">OffsetDate</a>
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<a href="#SQLDate">SQLDate</a> <br>
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Row Management: <a href="#affected_rows">Affected_Rows</a> <a href="#inserted_id">Insert_ID</a> <a href="#rowlock">RowLock</a>
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<a href="#genid">GenID</a> <a href="#createseq">CreateSequence</a> <a href="#dropseq">DropSequence</a>
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<br>
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Error Handling: <a href="#errormsg">ErrorMsg</a> <a href="#errorno">ErrorNo</a>
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<a href="#metaerror">MetaError</a> <a href="#metaerrormsg">MetaErrorMsg</a><br>
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Data Dictionary (metadata): <a href="#metadatabases">MetaDatabases</a> <a href="#metatables">MetaTables</a>
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<a href="#metacolumns">MetaColumns</a> <a href="#metacolumnames">MetaColumnNames</a>
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<a href="#metaprimarykeys">MetaPrimaryKeys</a> <a href="#metaforeignkeys">MetaForeignKeys</a>
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<a href="#serverinfo">ServerInfo</a> <br>
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Statistics and Query-Rewriting: <a href="#logsql">LogSQL</a> <a href="#fnexecute">fnExecute
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and fnCacheExecute</a><br>
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</font><font size="2">Deprecated: <a href="#bind">Bind</a> <a href="#blankrecordset">BlankRecordSet</a>
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<a href="#parameter">Parameter</a></font>
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<a href="#adorecordSet"><b><br>
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ADORecordSet</b></a><br>
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<font size="2">
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Returns one field: <a href="#fields">Fields</a><br>
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Returns one row:<a href="#fetchrow">FetchRow</a> <a href="#fetchinto">FetchInto</a>
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<a href="#fetchobject">FetchObject</a> <a href="#fetchnextobject">FetchNextObject</a>
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<a href="#fetchobj">FetchObj</a> <a href="#fetchnextobj">FetchNextObj</a>
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<a href="#getrowassoc">GetRowAssoc</a> <br>
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Returns all rows:<a href="#getarray">GetArray</a> <a href="#getrows">GetRows</a>
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<a href="#getassoc">GetAssoc</a><br>
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Scrolling:<a href="#move">Move</a> <a href="#movenext">MoveNext</a> <a href="#movefirst">MoveFirst</a>
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<a href="#movelast">MoveLast</a> <a href="#abspos">AbsolutePosition</a> <a href="#currentrow">CurrentRow</a>
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<a href="#atfirstpage">AtFirstPage</a> <a href="#atlastpage">AtLastPage</a>
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<a href="#absolutepage">AbsolutePage</a> </font> <font size="2"><br>
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Menu generation:<a href="#getmenu">GetMenu</a> <a href="#getmenu2">GetMenu2</a><br>
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Dates:<a href="#userdate">UserDate</a> <a href="#usertimestamp">UserTimeStamp</a>
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<a href="#unixdate">UnixDate</a> <a href="#unixtimestamp">UnixTimeStamp<br>
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</a>Recordset Info:<a href="#recordcount">RecordCount</a> <a href="#po_recordcount">PO_RecordSet</a>
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<a href="#nextrecordset">NextRecordSet</a><br>
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Field Info:<a href="#fieldcount">FieldCount</a> <a href="#fetchfield">FetchField</a>
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<a href="#metatype">MetaType</a><br>
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Cleanup: <a href="#rsclose">Close</a></font>
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</p>
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<p><font size="2"><a href="#rs2html"><b>rs2html</b></a> <a href="#exrs2html">example</a></font><br>
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<a href="#adodiff">Differences between ADOdb and ADO</a><br>
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<a href="#driverguide"><b>Database Driver Guide<br>
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</b></a><b><a href="#changes">Change Log</a></b><br>
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</p>
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<h2>Introduction<a name="intro"></a></h2>
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<p>PHP's database access functions are not standardised. This creates a need for
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a database class library to hide the differences between the different database
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API's (encapsulate the differences) so we can easily switch databases. PHP 4.0.5 or later
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is now required (because we use array-based str_replace).</p>
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<p>We currently support MySQL, Oracle, Microsoft SQL Server, Sybase, Sybase SQL Anywhere, Informix,
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PostgreSQL, FrontBase, SQLite, Interbase (Firebird and Borland variants), Foxpro, Access, ADO, DB2, SAP DB and ODBC.
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We have had successful reports of connecting to Progress and CacheLite via ODBC. We hope more people
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will contribute drivers to support other databases.</p>
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<p>PHP4 supports session variables. You can store your session information using
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ADOdb for true portability and scalability. See adodb-session.php for more information.</p>
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<p>Also read <a href="http://phplens.com/lens/adodb/tips_portable_sql.htm">tips_portable_sql.htm</a>
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for tips on writing
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portable SQL.</p>
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<h2>Unique Features of ADOdb<a name="features"></a></h2>
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<ul>
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<li><b>Easy for Windows programmers</b> to adapt to because many of the conventions
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are similar to Microsoft's ADO.</li>
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<li>Unlike other PHP database classes which focus only on select statements,
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<b>we provide support code to handle inserts and updates which can be adapted
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to multiple databases quickly.</b> Methods are provided for date handling,
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string concatenation and string quoting characters for differing databases.</li>
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<li>A<b> metatype system </b>is built in so that we can figure out that types
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such as CHAR, TEXT and STRING are equivalent in different databases.</li>
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<li><b>Easy to port</b> because all the database dependant code are stored in
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stub functions. You do not need to port the core logic of the classes.</li>
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<li><b>Portable table and index creation</b> with the <a href="docs-datadict.htm">datadict</a> classes.
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</li><li><b>Database performance monitoring and SQL tuning</b> with the <a href="docs-perf.htm">performance monitoring</a> classes.
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</li><li><b>Database-backed sessions</b> with the <a href="docs-session.htm">session management</a> classes. Supports session expiry notification.
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</li></ul>
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<h2>How People are using ADOdb<a name="users"></a></h2>
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Here are some examples of how people are using ADOdb (for a much longer list,
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visit <a href="http://phplens.com/phpeverywhere/adodb-cool-apps">adodb-cool-apps</a>):
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<ul>
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<li><a href="http://phplens.com/">PhpLens</a> is a commercial data grid
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component that allows both cool Web designers and serious unshaved
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programmers to develop and maintain databases on the Web easily.
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Developed by the author of ADOdb.<p>
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</p></li><li><a href="http://www.interakt.ro/phakt/">PHAkt: PHP Extension for DreamWeaver Ultradev</a> allows you to script PHP in the popular Web page editor. Database handling provided by ADOdb.<p>
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</p></li><li><a href="http://www.andrew.cmu.edu/%7Erdanyliw/snort/snortacid.html">Analysis Console for Intrusion Databases</a>
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(ACID): PHP-based analysis engine to search and process a database of
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security incidents generated by security-related software such as IDSes
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and firewalls (e.g. Snort, ipchains). By Roman Danyliw.<p>
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</p></li><li><a href="http://www.postnuke.com/">PostNuke</a> is a very
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popular free content management system and weblog system. It offers
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full CSS support, HTML 4.01 transitional compliance throughout, an
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advanced blocks system, and is fully multi-lingual enabled. <p>
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</p></li><li><a href="http://www.auto-net.no/easypublish.php?page=index&lang_id=2">EasyPublish CMS</a>
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is another free content management system for managing information and
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integrated modules on your internet, intranet- and extranet-sites. From
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Norway.<p>
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</p></li><li><a href="http://nola.noguska.com/">NOLA</a> is a full featured accounting, inventory, and job tracking application. It is licensed under the GPL, and developed by Noguska.
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</li></ul><p>
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</p><h2>Feature Requests and Bug Reports<a name="bugs"></a></h2>
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<p>Feature requests and bug reports can be emailed to <a href="mailto:jlim#natsoft.com.my">jlim#natsoft.com.my</a>
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or posted to the ADOdb Help forums at <a href="http://phplens.com/lens/lensforum/topics.php?id=4">http://phplens.com/lens/lensforum/topics.php?id=4</a>.</p>
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<h2>Installation Guide<a name="install"></a></h2>
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<p>Make sure you are running PHP 4.0.5 or later.
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Unpack all the files into a directory accessible by your webserver.</p>
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<p>To test, try modifying some of the tutorial examples. Make sure you customize
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the connection settings correctly. You can debug using <i>$db->debug = true</i> as shown below:</p>
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<pre><?php<br> include('adodb/adodb.inc.php');<br> $db = <a href="#adonewconnection">ADONewConnection</a>($dbdriver); # eg 'mysql' or 'postgres'<br> $db->debug = true;<br> $db-><a href="#connect">Connect</a>($server, $user, $password, $database);<br> $rs = $db-><a href="#execute">Execute</a>('select * from some_small_table');<br> print "<pre>";<br> print_r($rs-><a href="#getrows">GetRows</a>());<br> print "</pre>";<br>?></pre>
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<h3>Minimum Install<a name="mininstall"></a></h3>
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<p>For developers who want to release a minimal install of ADOdb, you will need:
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</p><ul>
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<li>adodb.inc.php
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</li><li>adodb-lib.inc.php
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</li><li>adodb-time.inc.php
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</li><li>drivers/adodb-$database.inc.php
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</li><li>license.txt (for legal reasons)
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</li><li>adodb-php4.inc.php
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</li><li>adodb-iterator.inc.php
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</li></ul>
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Optional:
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<ul>
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<li>adodb-error.inc.php and lang/adodb-$lang.inc.php (if you use MetaError())
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</li><li>adodb-csvlib.inc.php (if you use cached recordsets - CacheExecute(), etc)
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</li><li>adodb-exceptions.inc.php and adodb-errorhandler.inc.php (if you use adodb error handler or php5 exceptions).
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</li></ul>
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<h3>Code Initialization Examples<a name="coding"></a></h3>
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<p>When running ADOdb, at least two files are loaded. First is adodb/adodb.inc.php,
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which contains all functions used by all database classes. The code specific
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to a particular database is in the adodb/driver/adodb-????.inc.php file.</p>
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<a name="adonewconnection"></a>
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<p>For example, to connect to a mysql database:</p>
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<pre>include('/path/to/set/here/adodb.inc.php');<br>$conn = &ADONewConnection('mysql');<br></pre>
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<p>Whenever you need to connect to a database, you create a Connection object
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using the <b>ADONewConnection</b>($driver) function.
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<b>NewADOConnection</b>($driver) is an alternative name for the same function.</p>
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<p>At this point, you are not connected to the database (no longer true if you pass in a <a href="#dsnsupport">dsn</a>). You will first need to decide
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whether to use <i>persistent</i> or <i>non-persistent</i> connections. The advantage of <i>persistent</i>
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connections is that they are faster, as the database connection is never closed (even
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when you call Close()). <i>Non-persistent </i>connections take up much fewer resources though,
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reducing the risk of your database and your web-server becoming overloaded.
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</p><p>For persistent connections,
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use $conn-><a href="#pconnect">PConnect()</a>,
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or $conn-><a href="#connect">Connect()</a> for non-persistent connections.
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Some database drivers also support <a href="#nconnect">NConnect()</a>, which forces
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the creation of a new connection.
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<a name="connection_gotcha"></a>
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</p><p><b>Connection Gotcha</b>: If you create two connections, but both use the same userid and password,
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PHP will share the same connection. This can cause problems if the connections are meant to
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different databases. The solution is to always use different userid's for different databases,
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or use NConnect().
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<a name="dsnsupport"></a>
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</p><h3>Data Source Name (DSN) Support</h3>
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<p> Since ADOdb 4.51, you can connect to a database by passing a dsn to NewADOConnection() (or ADONewConnection, which is
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the same function). The dsn format is:
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</p><pre> $driver://$username:$password@hostname/$database?options[=value]<br></pre><p>
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NewADOConnection() calls Connect() or PConnect() internally for you. If the connection fails, false is returned.
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</p><pre> <font color="#008000"># non-persistent connection</font>
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$dsn = 'mysql://root:pwd@localhost/mydb';
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$db = NewADOConnection($dsn);
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if (!$db) die("Connection failed");
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<font color="#008000"># no need to call connect/pconnect!</font>
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$arr = $db->GetArray("select * from table");
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<font color="#008000"># persistent connection</font>
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$dsn2 = 'mysql://root:pwd@localhost/mydb?persist';
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</pre>
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<p>
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If you have special characters such as /:? in your dsn, then you need to rawurlencode them first:
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</p><pre> $pwd = rawurlencode($pwd);<br> $dsn = "mysql://root:$pwd@localhost/mydb";<br></pre>
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<p>
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Legal options are:
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</p><p>
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<table align="center" border="1"><tbody><tr><td>For all drivers</td><td>
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'persist', 'persistent', 'debug', 'fetchmode'
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</td></tr><tr><td>Interbase/Firebird
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</td><td>
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'dialect',
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'charset',
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'buffers'
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</td></tr><tr><td>M'soft ADO</td><td>
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'charpage'
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</td></tr><tr><td>MySQL</td><td>
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'clientflags'
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</td></tr><tr><td>MySQLi</td><td>
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'port', 'socket', 'clientflags'
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</td></tr><tr><td>Oci8</td><td>
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'nls_date_format'
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</td></tr></tbody></table>
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</p><p>
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For all drivers, when the options <i>persist</i> or <i>persistent</i> are set, a persistent connection is forced.
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The <i>debug</i> option enables debugging. The <i>fetchmode</i> calls <a href="#setfetchmode">SetFetchMode()</a>.
|
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If no value is defined for an option, then the value is set to 1.
|
|
</p><p>
|
|
ADOdb DSN's are compatible with version 1.0 of PEAR DB's DSN format.
|
|
<a name="connect_ex">
|
|
</a></p><h3><a name="connect_ex">Examples of Connecting to Databases</a></h3>
|
|
<h4><a name="connect_ex">MySQL and Most Other Database Drivers</a></h4>
|
|
<p><a name="connect_ex">MySQL connections are very straightforward, and the parameters are identical
|
|
to mysql_connect:</a></p>
|
|
<pre><a name="connect_ex"> $conn = &ADONewConnection('mysql'); <br> $conn->PConnect('localhost','userid','password','database');<br> <br> <font color="#008000"># or dsn </font>
|
|
$dsn = 'mysql://user:pwd@localhost/mydb';
|
|
$conn = ADONewConnection($dsn); # no need for Connect()
|
|
|
|
<font color="#008000"># or persistent dsn</font>
|
|
$dsn = 'mysql://user:pwd@localhost/mydb?persist';
|
|
$conn = ADONewConnection($dsn); # no need for PConnect()
|
|
|
|
<font color="#008000"># a more complex example:</font>
|
|
$pwd = urlencode($pwd);
|
|
$flags = MYSQL_CLIENT_COMPRESS;
|
|
$dsn = "mysql://user:$pwd@localhost/mydb?persist&clientflags=$flags";
|
|
$conn = ADONewConnection($dsn); # no need for PConnect()
|
|
</a></pre>
|
|
<p><a name="connect_ex"> For most drivers, you can use the standard function: Connect($server, $user, $password, $database), or
|
|
a </a><a href="dsnsupport">DSN</a> since ADOdb 4.51. Exceptions to this are listed below.
|
|
</p><h4>PostgreSQL</h4>
|
|
<p>PostgreSQL accepts connections using: </p>
|
|
<p>a. the standard connection string:</p>
|
|
<pre> $conn = &ADONewConnection('postgres7'); <br> $conn->PConnect('host=localhost port=5432 dbname=mary');</pre>
|
|
<p> b. the classical 4 parameters:</p>
|
|
<pre> $conn->PConnect('localhost','userid','password','database');<br> </pre>
|
|
<p>c. dsn:
|
|
</p><pre> $dsn = 'postgres7://user:pwd@localhost/mydb?persist'; # persist is optional<br> $conn = ADONewConnection($dsn); # no need for Connect/PConnect<br></pre>
|
|
<a name="ldap"></a>
|
|
|
|
<h4>LDAP</h4>
|
|
<p>Here is an example of querying a LDAP server. Thanks to Josh Eldridge for the driver and this example:
|
|
</p><pre> <?php<br>require('/path/to/adodb.inc.php');<br><br>$host = 'ldap.baylor.edu';<br>$ldapbase = 'ou=People,o=Baylor University,c=US';<br><br>$ldap = NewADOConnection( 'ldap' );<br>$ldap->Connect( $host, $user_name='', $password='', $ldapbase );<br><br>echo "<pre>";<br><br>print_r( $ldap->ServerInfo() );<br>$ldap->SetFetchMode(ADODB_FETCH_ASSOC);<br>$userName = 'eldridge';<br>$filter="(|(CN=$userName*)(sn=$userName*)(givenname=$userName*)(uid=$userName*))";<br><br>$rs = $ldap->Execute( $filter );<br>if ($rs)<br> while ($arr = $rs->FetchRow()) {<br> print_r($arr); <br> }<br><br>$rs = $ldap->Execute( $filter );<br>if ($rs) <br> while (!$rs->EOF) {<br> print_r($rs->fields); <br> $rs->MoveNext();<br> } <br> <br>print_r( $ldap->GetArray( $filter ) );<br><br>print_r( $ldap->GetRow( $filter ) );<br><br>$ldap->Close();<br>echo "</pre>";<br>?></pre>
|
|
<h4>Interbase/Firebird</h4>
|
|
You define the database in the $host parameter:
|
|
<pre> $conn = &ADONewConnection('ibase'); <br> $conn->PConnect('localhost:c:\ibase\employee.gdb','sysdba','masterkey');<br></pre>
|
|
<p>Or dsn:
|
|
</p><pre> $dsn = 'firebird://user:pwd@localhost/mydb?persist&dialect=3'; # persist is optional<br> $conn = ADONewConnection($dsn); # no need for Connect/PConnect<br></pre>
|
|
<h4>SQLite</h4>
|
|
Sqlite will create the database file if it does not exist.
|
|
<pre> $conn = &ADONewConnection('sqlite'); <br> $conn->PConnect('c:\path\to\sqlite.db'); # sqlite will create if does not exist<br></pre>
|
|
<p>Or dsn:
|
|
</p><pre> $dsn = 'sqlite://user:pwd@localhost/mydb?persist'; # persist is optional<br> $conn = ADONewConnection($dsn); # no need for Connect/PConnect<br></pre>
|
|
<h4>Oracle (oci8)</h4>
|
|
<p>With oci8, you can connect in multiple ways. Note that oci8 works fine with
|
|
newer versions of the Oracle, eg. 9i and 10g.</p>
|
|
<p>a. PHP and Oracle reside on the same machine, use default SID.</p>
|
|
<pre> $conn->Connect(false, 'scott', 'tiger');</pre>
|
|
<p>b. TNS Name defined in tnsnames.ora (or ONAMES or HOSTNAMES), eg. 'myTNS'</p>
|
|
<pre> $conn->PConnect(false, 'scott', 'tiger', 'myTNS');</pre>
|
|
<p>or</p>
|
|
<pre> $conn->PConnect('myTNS', 'scott', 'tiger');</pre>
|
|
<p>c. Host Address and SID</p>
|
|
<pre> $conn->Connect('192.168.0.1', 'scott', 'tiger', 'SID');</pre>
|
|
<p>d. Host Address and Service Name</p>
|
|
<pre> $conn->Connect('192.168.0.1', 'scott', 'tiger', 'servicename');</pre>
|
|
<p>e. Oracle connection string:
|
|
</p><pre> $cstr = "(DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=$host)(PORT=$port))<br> (CONNECT_DATA=(SID=$sid)))";<br> $conn->Connect($cstr, 'scott', 'tiger');<br></pre>
|
|
<p>f. ADOdb dsn:
|
|
</p><pre> $dsn = 'oci8://user:pwd@tnsname/?persist'; # persist is optional<br> $conn = ADONewConnection($dsn); # no need for Connect/PConnect<br> <br> $dsn = 'oci8://user:pwd@host/sid';<br> $conn = ADONewConnection($dsn);<br> <br> $dsn = 'oci8://user:pwd@/'; # oracle on local machine<br> $conn = ADONewConnection($dsn);<br></pre>
|
|
<p>You can also set the charSet for Oracle 9.2 and later, supported since PHP 4.3.2, ADOdb 4.54:
|
|
<pre>
|
|
$conn->charSet = 'we8iso8859p1';
|
|
$conn->Connect(...);
|
|
|
|
# or
|
|
$dsn = 'oci8://user:pwd@tnsname/?charset=WE8MSWIN1252';
|
|
$db = ADONewConnection($dsn);
|
|
</pre>
|
|
<a name="dsnless"></a>
|
|
<h4>DSN-less ODBC ( Access, MSSQL and DB2 examples)</h4>
|
|
<p>ODBC DSN's can be created in the ODBC control panel, or you can use a DSN-less
|
|
connection.To use DSN-less connections with ODBC you need PHP 4.3 or later.
|
|
</p>
|
|
<p>For Microsoft Access:</p>
|
|
<pre> $db =& ADONewConnection('access');<br> $dsn = <strong>"Driver={Microsoft Access Driver (*.mdb)};Dbq=d:\\northwind.mdb;Uid=Admin;Pwd=;";</strong>
|
|
$db->Connect($dsn);
|
|
</pre>
|
|
For Microsoft SQL Server:
|
|
<pre> $db =& ADONewConnection('odbc_mssql');<br> $dsn = <strong>"Driver={SQL Server};Server=localhost;Database=northwind;"</strong>;<br> $db->Connect($dsn,'userid','password');<br></pre>
|
|
or if you prefer to use the mssql extension (which is limited to mssql 6.5 functionality):
|
|
<pre> $db =& ADONewConnection('mssql');<br> $db->Execute('localhost', 'userid', 'password', 'northwind');<br></pre>
|
|
For DB2:
|
|
<pre> $db =& ADONewConnection('db2');<br> $dsn = "driver={IBM db2 odbc DRIVER};Database=sample;hostname=localhost;port=50000;protocol=TCPIP;".<br> "uid=root; pwd=secret";<br> $db->Connect($dsn);<br></pre>
|
|
<b>DSN-less Connections with ADO</b><br>
|
|
If you are using versions of PHP earlier than PHP 4.3.0, DSN-less connections
|
|
only work with Microsoft's ADO, which is Microsoft's COM based API. An example
|
|
using the ADOdb library and Microsoft's ADO:
|
|
<pre><?php<br> include('adodb.inc.php'); <br> $db = &ADONewConnection("ado_mssql");<br> print "<h1>Connecting DSN-less $db->databaseType...</h1>";<br> <br> <b>$myDSN="PROVIDER=MSDASQL;DRIVER={SQL Server};"<br> . "SERVER=flipper;DATABASE=ai;UID=sa;PWD=;" ;</b>
|
|
$db->Connect($myDSN);
|
|
|
|
$rs = $db->Execute("select * from table");
|
|
$arr = $rs->GetArray();
|
|
print_r($arr);
|
|
?>
|
|
</pre><a name="speed"></a>
|
|
<h2>High Speed ADOdb - tuning tips</h2>
|
|
<p>ADOdb is a big class library, yet it <a href="http://phplens.com/lens/adodb/">consistently beats</a> all other PHP class
|
|
libraries in performance. This is because it is designed in a layered fashion,
|
|
like an onion, with the fastest functions in the innermost layer. Stick to the
|
|
following functions for best performance:</p>
|
|
<table align="center" border="1" width="40%">
|
|
<tbody><tr>
|
|
<td><div align="center"><b>Innermost Layer</b></div></td>
|
|
</tr>
|
|
<tr>
|
|
<td><p align="center">Connect, PConnect, NConnect<br>
|
|
Execute, CacheExecute<br>
|
|
SelectLimit, CacheSelectLimit<br>
|
|
MoveNext, Close <br>
|
|
qstr, Affected_Rows, Insert_ID</p></td>
|
|
</tr>
|
|
</tbody></table>
|
|
<p>The fastest way to access the field data is by accessing the array $recordset->fields
|
|
directly. Also set the global variables <a href="#adodb_fetch_mode">$ADODB_FETCH_MODE</a>
|
|
= ADODB_FETCH_NUM, and (for oci8, ibase/firebird and odbc) <a href="#adodb_countrecs">$ADODB_COUNTRECS</a> = false
|
|
before you connect to your database.</p>
|
|
<p>Consider using bind parameters if your database supports it, as it improves
|
|
query plan reuse. Use ADOdb's performance tuning system to identify bottlenecks
|
|
quickly. At the time of writing (Dec 2003), this means oci8 and odbc drivers.</p>
|
|
<p>Lastly make sure you have a PHP accelerator cache installed such as APC, Turck
|
|
MMCache, Zend Accelerator or ionCube.</p>
|
|
<p>Some examples:</p>
|
|
<table align="center" border="1"><tbody><tr><td><b>Fastest data retrieval using PHP</b></td><td><b>Fastest data retrieval using ADOdb extension</b></td></tr>
|
|
<tr><td>
|
|
<pre>$rs =& $rs->Execute($sql);<br>while (!$rs->EOF) {<br> var_dump($rs->fields);<br> $rs->MoveNext();<br>}</pre></td><td>
|
|
<pre>$rs =& $rs->Execute($sql);<br>$array = adodb_getall($rs);<br>var_dump($array);<br><br><br></pre></td></tr></tbody></table>
|
|
<p><b>Advanced Tips</b>
|
|
</p><p>If you have the <a href="http://adodb.sourceforge.net/#extension">ADOdb C extension</a> installed,
|
|
you can replace your calls to $rs->MoveNext() with adodb_movenext($rs).
|
|
This doubles the speed of this operation. For retrieving entire recordsets at once,
|
|
use GetArray(), which uses the high speed extension function adodb_getall($rs) internally.
|
|
</p><p>Execute() is the default way to run queries. You can use the low-level functions _Execute() and _query()
|
|
to reduce query overhead. Both these functions share the same parameters as Execute().
|
|
</p><p>If you do not have any bind parameters or your database supports
|
|
binding (without emulation),
|
|
then you can call _Execute() directly. Calling this function bypasses
|
|
bind emulation. Debugging is still supported in _Execute().
|
|
</p><p>If you do not require debugging facilities nor emulated
|
|
binding, and do not require a recordset to be returned, then you can
|
|
call _query. This is great for inserts, updates and deletes. Calling
|
|
this function
|
|
bypasses emulated binding, debugging, and recordset handling. Either
|
|
the resultid, true or false are returned by _query(). </p><p>For Informix, you can disable scrollable cursors with $db->cursorType = 0.
|
|
</p><p><a name="hack"></a> </p>
|
|
<h2>Hacking ADOdb Safely</h2>
|
|
<p>You might want to modify ADOdb for your own purposes. Luckily you can
|
|
still maintain backward compatibility by sub-classing ADOdb and using the $ADODB_NEWCONNECTION
|
|
variable. $ADODB_NEWCONNECTION allows you to override the behaviour of ADONewConnection().
|
|
ADOConnection() checks for this variable and will call
|
|
the function-name stored in this variable if it is defined.
|
|
</p><p>In the following example, new functionality for the connection object
|
|
is placed in the <i>hack_mysql</i> and <i>hack_postgres7</i> classes. The recordset class naming convention
|
|
can be controlled using $rsPrefix. Here we set it to 'hack_rs_', which will make ADOdb use
|
|
<i>hack_rs_mysql</i> and <i>hack_rs_postgres7</i> as the recordset classes.
|
|
|
|
|
|
</p><pre>class hack_mysql extends adodb_mysql {<br>var $rsPrefix = 'hack_rs_';<br> /* Your mods here */<br>}<br><br>class hack_rs_mysql extends ADORecordSet_mysql {<br> /* Your mods here */<br>}<br><br>class hack_postgres7 extends adodb_postgres7 {<br>var $rsPrefix = 'hack_rs_';<br> /* Your mods here */<br>}<br><br>class hack_rs_postgres7 extends ADORecordSet_postgres7 {<br> /* Your mods here */<br>}<br><br>$ADODB_NEWCONNECTION = 'hack_factory';<br><br>function& hack_factory($driver)<br>{<br> if ($driver !== 'mysql' && $driver !== 'postgres7') return false;<br> <br> $driver = 'hack_'.$driver;<br> $obj = new $driver();<br> return $obj;<br>}<br><br>include_once('adodb.inc.php');<br></pre>
|
|
<p></p><p>Don't forget to call the constructor of the parent class in
|
|
your constructor. If you want to use the default ADOdb drivers return
|
|
false in the above hack_factory() function.
|
|
<a name="php5"></a>
|
|
</p><h2>PHP5 Features</h2>
|
|
ADOdb 4.02 or later will transparently determine which version of PHP you are using.
|
|
If PHP5 is detected, the following features become available:
|
|
<ul>
|
|
<a name="php5iterators"></a>
|
|
<li><b>Foreach iterators</b>: This is a very natural way of going through a recordset:
|
|
<pre> $ADODB_FETCH_MODE = ADODB_FETCH_NUM;<br> $rs = $db->Execute($sql);<br> foreach($rs as $k => $row) {<br> echo "r1=".$row[0]." r2=".$row[1]."<br>";<br> }<br></pre>
|
|
<p>
|
|
<a name="php5exceptions"></a>
|
|
</p></li><li><b>Exceptions</b>: Just include <i>adodb-exceptions.inc.php</i> and you can now
|
|
catch exceptions on errors as they occur.
|
|
<pre> <b>include("../adodb-exceptions.inc.php");</b> <br> include("../adodb.inc.php"); <br> try { <br> $db = NewADOConnection("oci8"); <br> $db->Connect('','scott','bad-password'); <br> } catch (exception $e) { <br> var_dump($e); <br> adodb_backtrace($e->gettrace());<br> } <br></pre>
|
|
<p>Note that reaching EOF is <b>not</b> considered an error nor an exception.
|
|
If you want to use the default ADOdb drivers return false.
|
|
</p></li></ul>
|
|
<h3><a name="drivers"></a>Databases Supported</h3>
|
|
The <i>name</i> below is the value you pass to NewADOConnection($name) to create a connection object for that database.
|
|
<p>
|
|
<p>
|
|
</p><table border="1" width="100%">
|
|
<tbody><tr valign="top">
|
|
<td><b>Name</b></td>
|
|
<td><b>Tested</b></td>
|
|
<td><b>Database</b></td>
|
|
<td><b><font size="2">RecordCount() usable</font></b></td>
|
|
<td><b>Prerequisites</b></td>
|
|
<td><b>Operating Systems</b></td>
|
|
</tr>
|
|
<tr valign="top">
|
|
<td><b><font size="2">access</font></b></td>
|
|
<td><font size="2">B</font></td>
|
|
<td><font size="2">Microsoft Access/Jet. You need to create an ODBC DSN.</font></td>
|
|
<td><font size="2">Y/N</font></td>
|
|
<td><font size="2">ODBC </font></td>
|
|
<td><font size="2">Windows only</font></td>
|
|
</tr>
|
|
<tr valign="top">
|
|
<td><b><font size="2">ado</font></b></td>
|
|
<td><font size="2">B</font></td>
|
|
<td><p><font size="2">Generic ADO, not tuned for specific databases. Allows
|
|
DSN-less connections. For best performance, use an OLEDB provider. This
|
|
is the base class for all ado drivers.</font></p>
|
|
<p><font size="2">You can set $db->codePage before connecting.</font></p></td>
|
|
<td><font size="2">? depends on database</font></td>
|
|
<td><font size="2">ADO or OLEDB provider</font></td>
|
|
<td><font size="2">Windows only</font></td>
|
|
</tr>
|
|
<tr valign="top">
|
|
<td><b><font size="2">ado_access</font></b></td>
|
|
<td><font size="2">B</font></td>
|
|
<td><font size="2">Microsoft Access/Jet using ADO. Allows DSN-less connections.
|
|
For best performance, use an OLEDB provider.</font></td>
|
|
<td><font size="2">Y/N</font></td>
|
|
<td><font size="2">ADO or OLEDB provider</font></td>
|
|
<td><font size="2">Windows only</font></td>
|
|
</tr>
|
|
<tr valign="top">
|
|
<td><b><font size="2">ado_mssql</font></b></td>
|
|
<td><font size="2">B</font></td>
|
|
<td><font size="2">Microsoft SQL Server using ADO. Allows DSN-less connections.
|
|
For best performance, use an OLEDB provider.</font></td>
|
|
<td><font size="2">Y/N</font></td>
|
|
<td><font size="2">ADO or OLEDB provider</font></td>
|
|
<td><font size="2">Windows only</font></td>
|
|
</tr>
|
|
<tr valign="top">
|
|
<td height="54"><b><font size="2">db2</font></b></td>
|
|
<td height="54"><font size="2">A</font></td>
|
|
<td height="54"><font size="2">DB2. Should work reliably as based on ODBC
|
|
driver.</font></td>
|
|
<td height="54"><font size="2">Y/N</font></td>
|
|
<td height="54"><font size="2">DB2 CLI/ODBC interface</font></td>
|
|
<td height="54"> <p><font size="2">Unix and Windows. <a href="http://www.faqts.com/knowledge_base/view.phtml/aid/6283/fid/14">Unix
|
|
install hints</a>. I have had reports that the $host and $database params have to be reversed in Connect() when using the CLI interface.</font></p></td>
|
|
</tr>
|
|
<tr valign="top">
|
|
<td><b><font size="2">vfp</font></b></td>
|
|
<td><font size="2">A</font></td>
|
|
<td><font size="2">Microsoft Visual FoxPro. You need to create an ODBC DSN.</font></td>
|
|
<td><font size="2">Y/N</font></td>
|
|
<td><font size="2">ODBC</font></td>
|
|
<td><font size="2">Windows only</font></td>
|
|
</tr>
|
|
<tr valign="top">
|
|
<td><b><font size="2">fbsql</font></b></td>
|
|
<td><font size="2">C</font></td>
|
|
<td><font size="2">FrontBase. </font></td>
|
|
<td><font size="2">Y</font></td>
|
|
<td><font size="2">?</font></td>
|
|
<td> <p><font size="2">Unix and Windows</font></p></td>
|
|
</tr>
|
|
<tr valign="top">
|
|
<td><b><font size="2">ibase</font></b></td>
|
|
<td><font size="2">B</font></td>
|
|
<td><font size="2">Interbase 6 or earlier. Some users report you might need
|
|
to use this<br>
|
|
$db->PConnect('localhost:c:/ibase/employee.gdb', "sysdba", "masterkey")
|
|
to connect. Lacks Affected_Rows currently.<br>
|
|
<br>
|
|
You can set $db->dialect, $db->buffers and $db->charSet before connecting.</font></td>
|
|
<td><font size="2">Y/N</font></td>
|
|
<td><font size="2">Interbase client</font></td>
|
|
<td><font size="2">Unix and Windows</font></td>
|
|
</tr>
|
|
<tr valign="top">
|
|
<td><b><i><font size="2">firebird</font></i></b></td>
|
|
<td><font size="2">C</font></td>
|
|
<td><font size="2">Firebird version of interbase.</font></td>
|
|
<td><font size="2">Y/N</font></td>
|
|
<td><font size="2">Interbase client</font></td>
|
|
<td><font size="2">Unix and Windows</font></td>
|
|
</tr>
|
|
<tr valign="top">
|
|
<td><b><i><font size="2">borland_ibase</font></i></b></td>
|
|
<td><font size="2">C</font></td>
|
|
<td><font size="2">Borland version of Interbase 6.5 or later. Very sad that
|
|
the forks differ.</font></td>
|
|
<td><font size="2">Y/N</font></td>
|
|
<td><font size="2">Interbase client</font></td>
|
|
<td><font size="2">Unix and Windows</font></td>
|
|
</tr>
|
|
|
|
<tr valign="top">
|
|
<td><b><font size="2">informix</font></b></td>
|
|
<td><font size="2">C</font></td>
|
|
<td><font size="2">Generic informix driver. Use this if you are using Informix 7.3 or later.</font></td>
|
|
<td><font size="2">Y/N</font></td>
|
|
<td><font size="2">Informix client</font></td>
|
|
<td><font size="2">Unix and Windows</font></td>
|
|
</tr>
|
|
<tr valign="top">
|
|
<td><b><font size="2">informix72</font></b></td>
|
|
<td><font size="2">C</font></td>
|
|
<td><font size="2"> Informix databases before Informix 7.3 that do no support
|
|
SELECT FIRST.</font></td>
|
|
<td><font size="2">Y/N</font></td>
|
|
<td><font size="2">Informix client</font></td>
|
|
<td><font size="2">Unix and Windows</font></td>
|
|
</tr>
|
|
<tr valign="top">
|
|
<td><b><font size="2">ldap</font></b></td>
|
|
<td><font size="2">C</font></td>
|
|
<td><font size="2">LDAP driver. See this example for usage information.</font></td>
|
|
<td> </td>
|
|
<td><font size="2">LDAP extension</font></td>
|
|
<td><font size="2">?</font></td>
|
|
</tr>
|
|
<tr valign="top">
|
|
<td height="73"><b><font size="2">mssql</font></b></td>
|
|
<td height="73"><font size="2">A</font></td>
|
|
<td height="73"> <p><font size="2">Microsoft SQL Server 7 and later. Works
|
|
with Microsoft SQL Server 2000 also. Note that date formating is problematic
|
|
with this driver. For example, the PHP mssql extension does not return
|
|
the seconds for datetime!</font></p></td>
|
|
<td height="73"><font size="2">Y/N</font></td>
|
|
<td height="73"><font size="2">Mssql client</font></td>
|
|
<td height="73"> <p><font size="2">Unix and Windows. <br>
|
|
<a href="http://phpbuilder.com/columns/alberto20000919.php3">Unix install
|
|
howto</a> and <a href="http://linuxjournal.com/article.php?sid=6636&mode=thread&order=0">another
|
|
one</a>. </font></p></td>
|
|
</tr>
|
|
<tr valign="top">
|
|
<td height="73"><b><font size="2">mssqlpo</font></b></td>
|
|
<td height="73"><font size="2">A</font></td>
|
|
<td height="73"> <p><font size="2">Portable mssql driver. Identical to above
|
|
mssql driver, except that '||', the concatenation operator, is converted
|
|
to '+'. Useful for porting scripts from most other sql variants that use
|
|
||.</font></p></td>
|
|
<td height="73"><font size="2">Y/N</font></td>
|
|
<td height="73"><font size="2">Mssql client</font></td>
|
|
<td height="73"> <p><font size="2">Unix and Windows. <a href="http://phpbuilder.com/columns/alberto20000919.php3"><br>
|
|
Unix install howto</a>.</font></p></td>
|
|
</tr>
|
|
<tr valign="top">
|
|
<td><b><font size="2">mysql</font></b></td>
|
|
<td><font size="2">A</font></td>
|
|
<td><font size="2">MySQL without transaction support. You can also set $db->clientFlags
|
|
before connecting.</font></td>
|
|
<td><font size="2">Y</font></td>
|
|
<td><font size="2">MySQL client</font></td>
|
|
<td><font size="2">Unix and Windows</font></td>
|
|
</tr>
|
|
<tr valign="top">
|
|
<td><font size="2"><b>mysqlt</b> or <b>maxsql</b></font></td>
|
|
<td><font size="2">A</font></td>
|
|
<td> <p><font size="2">MySQL with transaction support. We recommend using
|
|
|| as the concat operator for best portability. This can be done by running
|
|
MySQL using: <br>
|
|
<i>mysqld --ansi</i> or <i>mysqld --sql-mode=PIPES_AS_CONCAT</i></font></p></td>
|
|
<td><font size="2">Y/N</font></td>
|
|
<td><font size="2">MySQL client</font></td>
|
|
<td><font size="2">Unix and Windows</font></td>
|
|
</tr>
|
|
<tr valign="top">
|
|
<td><b><font size="2">oci8</font></b></td>
|
|
<td><font size="2">A</font></td>
|
|
<td><font size="2">Oracle 8/9. Has more functionality than <i>oracle</i> driver
|
|
(eg. Affected_Rows). You might have to putenv('ORACLE_HOME=...') before
|
|
Connect/PConnect. </font> <p><font size="2"> There are 2 ways of connecting
|
|
- with server IP and service name: <br>
|
|
<i>PConnect('serverip:1521','scott','tiger','service'</i>)<br>
|
|
or using an entry in TNSNAMES.ORA or ONAMES or HOSTNAMES: <br>
|
|
<i>PConnect(false, 'scott', 'tiger', $oraname)</i>. </font>
|
|
</p><p><font size="2">Since 2.31, we support Oracle REF cursor variables directly
|
|
(see <a href="#executecursor">ExecuteCursor</a>).</font> </p></td>
|
|
<td><font size="2">Y/N</font></td>
|
|
<td><font size="2">Oracle client</font></td>
|
|
<td><font size="2">Unix and Windows</font></td>
|
|
</tr>
|
|
<tr valign="top">
|
|
<td><b><font size="2">oci805</font></b></td>
|
|
<td><font size="2">C</font></td>
|
|
<td><font size="2">Supports reduced Oracle functionality for Oracle 8.0.5.
|
|
SelectLimit is not as efficient as in the oci8 or oci8po drivers.</font></td>
|
|
<td><font size="2">Y/N</font></td>
|
|
<td><font size="2">Oracle client</font></td>
|
|
<td><font size="2">Unix and Windows</font></td>
|
|
</tr>
|
|
<tr valign="top">
|
|
<td><b><font size="2">oci8po</font></b></td>
|
|
<td><font size="2">A</font></td>
|
|
<td><font size="2">Oracle 8/9 portable driver. This is nearly identical with
|
|
the oci8 driver except (a) bind variables in Prepare() use the ? convention,
|
|
instead of :bindvar, (b) field names use the more common PHP convention
|
|
of lowercase names. </font> <p><font size="2">Use this driver if porting
|
|
from other databases is important. Otherwise the oci8 driver offers better
|
|
performance. </font> </p></td>
|
|
<td><font size="2">Y/N</font></td>
|
|
<td><font size="2">Oracle client</font></td>
|
|
<td><font size="2">Unix and Windows</font></td>
|
|
</tr>
|
|
<tr valign="top">
|
|
<td><b><font size="2">odbc</font></b></td>
|
|
<td><font size="2">A</font></td>
|
|
<td><font size="2">Generic ODBC, not tuned for specific databases. To connect,
|
|
use <br>
|
|
PConnect('DSN','user','pwd'). This is the base class for all odbc derived
|
|
drivers.</font></td>
|
|
<td><font size="2">? depends on database</font></td>
|
|
<td><font size="2">ODBC</font></td>
|
|
<td><font size="2">Unix and Windows. <a href="http://phpbuilder.com/columns/alberto20000919.php3?page=4">Unix
|
|
hints.</a></font></td>
|
|
</tr>
|
|
<tr valign="top">
|
|
<td><b><font size="2">odbc_mssql</font></b></td>
|
|
<td><font size="2">C</font></td>
|
|
<td><font size="2">Uses ODBC to connect to MSSQL</font></td>
|
|
<td><font size="2">Y/N</font></td>
|
|
<td><font size="2">ODBC</font></td>
|
|
<td><font size="2">Unix and Windows. </font></td>
|
|
</tr>
|
|
<tr valign="top">
|
|
<td><b><font size="2">odbc_oracle</font></b></td>
|
|
<td><font size="2">C</font></td>
|
|
<td><font size="2">Uses ODBC to connect to Oracle</font></td>
|
|
<td><font size="2">Y/N</font></td>
|
|
<td><font size="2">ODBC</font></td>
|
|
<td><font size="2">Unix and Windows. </font></td>
|
|
</tr>
|
|
|
|
<tr valign="top">
|
|
<td><b><font size="2">odbtp</font></b></td>
|
|
<td><font size="2">C</font></td>
|
|
<td><font size="2">Generic odbtp driver. <a href="http://odbtp.sourceforge.net/">Odbtp</a> is a software for
|
|
accessing Windows ODBC data sources from other operating systems.</font></td>
|
|
<td><font size="2">Y/N</font></td>
|
|
<td><font size="2">odbtp</font></td>
|
|
<td><font size="2">Unix and Windows</font></td>
|
|
</tr>
|
|
<tr valign="top">
|
|
<td><b><font size="2">odbtp_unicode</font></b></td>
|
|
<td><font size="2">C</font></td>
|
|
<td><font size="2">Odtbp with unicode support</font></td>
|
|
<td><font size="2">Y/N</font></td>
|
|
<td><font size="2">odbtp</font></td>
|
|
<td><font size="2">Unix and Windows</font></td>
|
|
</tr>
|
|
<tr valign="top">
|
|
<td height="34"><b><font size="2">oracle</font></b></td>
|
|
<td height="34"><font size="2">C</font></td>
|
|
<td height="34"><font size="2">Implements old Oracle 7 client API. Use oci8
|
|
driver if possible for better performance.</font></td>
|
|
<td height="34"><font size="2">Y/N</font></td>
|
|
<td height="34"><font size="2">Oracle client</font></td>
|
|
<td height="34"><font size="2">Unix and Windows</font></td>
|
|
</tr>
|
|
<tr valign="top">
|
|
<td height="34"><b><font size="2">netezza</font></b></td>
|
|
<td height="34"><font size="2">C</font></td>
|
|
<td height="34"><font size="2">Netezza driver. Netezza is based on postgres code-base.</font></td>
|
|
<td height="34"><font size="2">Y</font></td>
|
|
<td height="34"><font size="2">?</font></td>
|
|
<td height="34"><font size="2">?</font></td>
|
|
</tr>
|
|
<tr valign="top">
|
|
<td><b><font size="2">postgres</font></b></td>
|
|
<td><font size="2">A</font></td>
|
|
<td><font size="2">Generic PostgreSQL driver. Currently identical to postgres7
|
|
driver. </font></td>
|
|
<td><font size="2">Y</font></td>
|
|
<td><font size="2">PostgreSQL client</font></td>
|
|
<td><font size="2">Unix and Windows. </font></td>
|
|
</tr>
|
|
<tr valign="top">
|
|
<td><b><font size="2">postgres64</font></b></td>
|
|
<td><font size="2">A</font></td>
|
|
<td><font size="2">For PostgreSQL 6.4 and earlier which does not support LIMIT
|
|
internally.</font></td>
|
|
<td><font size="2">Y</font></td>
|
|
<td><font size="2">PostgreSQL client</font></td>
|
|
<td><font size="2">Unix and Windows. </font></td>
|
|
</tr>
|
|
<tr valign="top">
|
|
<td><b><font size="2">postgres7</font></b></td>
|
|
<td><font size="2">A</font></td>
|
|
<td><font size="2">PostgreSQL which supports LIMIT and other version 7 functionality.</font></td>
|
|
<td><font size="2">Y</font></td>
|
|
<td><font size="2">PostgreSQL client</font></td>
|
|
<td><font size="2">Unix and Windows. </font></td>
|
|
</tr>
|
|
<tr valign="top">
|
|
<td><b><font size="2">sapdb</font></b></td>
|
|
<td><font size="2">C</font></td>
|
|
<td><font size="2">SAP DB. Should work reliably as based on ODBC driver.</font></td>
|
|
<td><font size="2">Y/N</font></td>
|
|
<td><font size="2">SAP ODBC client</font></td>
|
|
<td> <p><font size="2">?</font></p></td>
|
|
</tr>
|
|
<tr valign="top">
|
|
<td><b><font size="2">sqlanywhere</font></b></td>
|
|
<td><font size="2">C</font></td>
|
|
<td><font size="2">Sybase SQL Anywhere. Should work reliably as based on ODBC
|
|
driver.</font></td>
|
|
<td><font size="2">Y/N</font></td>
|
|
<td><font size="2">SQL Anywhere ODBC client</font></td>
|
|
<td> <p><font size="2">?</font></p></td>
|
|
</tr>
|
|
<tr valign="top">
|
|
<td height="54"><b><font size="2">sqlite</font></b></td>
|
|
<td height="54"><font size="2">B</font></td>
|
|
<td height="54"><font size="2">SQLite.</font></td>
|
|
<td height="54"><font size="2">Y</font></td>
|
|
<td height="54"><font size="2">-</font></td>
|
|
<td height="54"> <p><font size="2">Unix and Windows.</font></p></td>
|
|
</tr>
|
|
<tr valign="top">
|
|
<td height="54"><b><font size="2">sqlitepo</font></b></td>
|
|
<td height="54"><font size="2">B</font></td>
|
|
<td height="54"><font size="2">Portable SQLite driver. This is because assoc mode does not work like other drivers in sqlite.
|
|
Namely, when selecting (joining) multiple tables, the table
|
|
names are included in the assoc keys in the "sqlite" driver.</font><p>
|
|
<font size="2"> In "sqlitepo" driver, the table names are stripped from the returned column names.
|
|
When this results in a conflict, the first field get preference.
|
|
</font></p></td>
|
|
<td height="54"><font size="2">Y</font></td>
|
|
<td height="54"><font size="2">-</font></td>
|
|
<td height="54"> <p><font size="2">Unix and Windows.</font></p></td>
|
|
</tr>
|
|
|
|
|
|
<tr valign="top">
|
|
<td><b><font size="2">sybase</font></b></td>
|
|
<td><font size="2">C</font></td>
|
|
<td><font size="2">Sybase. </font></td>
|
|
<td><font size="2">Y/N</font></td>
|
|
<td><font size="2">Sybase client</font></td>
|
|
<td> <p><font size="2">Unix and Windows.</font></p></td>
|
|
</tr>
|
|
</tbody></table>
|
|
|
|
</p><p>The "Tested" column indicates how extensively the code has been tested
|
|
and used. <br>
|
|
A = well tested and used by many people<br>
|
|
B = tested and usable, but some features might not be implemented<br>
|
|
C = user contributed or experimental driver. Might not fully support all of
|
|
the latest features of ADOdb. </p>
|
|
<p>The column "RecordCount() usable" indicates whether RecordCount()
|
|
return the number of rows, or returns -1 when a SELECT statement is executed.
|
|
If this column displays Y/N then the RecordCount() is emulated when the global
|
|
variable $ADODB_COUNTRECS=true (this is the default). Note that for large recordsets,
|
|
it might be better to disable RecordCount() emulation because substantial amounts
|
|
of memory are required to cache the recordset for counting. Also there is a
|
|
speed penalty of 40-50% if emulation is required. This is emulated in most databases
|
|
except for PostgreSQL and MySQL. This variable is checked every time a query
|
|
is executed, so you can selectively choose which recordsets to count.</p>
|
|
<p>
|
|
</p><hr>
|
|
<h1>Tutorials<a name="quickstart"></a></h1>
|
|
<h3>Example 1: Select Statement<a name="ex1"></a></h3>
|
|
<p>Task: Connect to the Access Northwind DSN, display the first 2 columns of each
|
|
row.</p>
|
|
<p>In this example, we create a ADOConnection object, which represents the connection
|
|
to the database. The connection is initiated with <a href="#pconnect"><font face="Courier New, Courier, mono">PConnect</font></a>,
|
|
which is a persistent connection. Whenever we want to query the database, we
|
|
call the <font face="Courier New, Courier, mono">ADOConnection.<a href="#execute">Execute</a>()</font>
|
|
function. This returns an ADORecordSet object which is actually a cursor that
|
|
holds the current row in the array <font face="Courier New, Courier, mono">fields[]</font>.
|
|
We use <font face="Courier New, Courier, mono"><a href="#movenext">MoveNext</a>()</font>
|
|
to move from row to row.</p>
|
|
<p>NB: A useful function that is not used in this example is <font face="Courier New, Courier, mono"><a href="#selectlimit">SelectLimit</a></font>,
|
|
which allows us to limit the number of rows shown.
|
|
</p><pre><?<br><font face="Courier New, Courier, mono"><b>include</b>('adodb.inc.php'); # load code common to ADOdb<br>$<font color="#660000">conn</font> = &ADONewConnection('access'); # create a connection<br>$<font color="#660000">conn</font>->PConnect('northwind'); # connect to MS-Access, northwind DSN<br>$<font color="#660000">recordSet</font> = &$<font color="#660000">conn</font>->Execute('select * from products');<br>if (!$<font color="#660000">recordSet</font>) <br> print $<font color="#660000">conn</font>->ErrorMsg();<br>else<br><b>while</b> (!$<font color="#660000">recordSet</font>->EOF) {<br> <b>print</b> $<font color="#660000">recordSet</font>->fields[0].' '.$<font color="#660000">recordSet</font>->fields[1].'<BR>';<br> $<font color="#660000">recordSet</font>->MoveNext();<br>}</font><font face="Courier New, Courier, mono">
|
|
|
|
$<font color="#660000">recordSet</font>->Close(); # optional<br>$<font color="#660000">conn</font>->Close(); # optional<br></font>
|
|
?>
|
|
</pre>
|
|
<p>The $<font face="Courier New, Courier, mono">recordSet</font> returned stores
|
|
the current row in the <font face="Courier New, Courier, mono">$recordSet->fields</font>
|
|
array, indexed by column number (starting from zero). We use the <font face="Courier New, Courier, mono"><a href="#movenext">MoveNext</a>()</font>
|
|
function to move to the next row. The <font face="Courier New, Courier, mono">EOF</font>
|
|
property is set to true when end-of-file is reached. If an error occurs in Execute(),
|
|
we return false instead of a recordset.</p>
|
|
<p>The <code>$recordSet->fields[]</code> array is generated by the PHP database
|
|
extension. Some database extensions only index by number and do not index the
|
|
array by field name. To force indexing by name - that is associative arrays
|
|
- use the SetFetchMode function. Each recordset saves and uses whatever fetch
|
|
mode was set when the recordset was created in Execute() or SelectLimit().
|
|
</p><pre> $db->SetFetchMode(ADODB_FETCH_NUM);<br> $rs1 = $db->Execute('select * from table');<br> $db->SetFetchMode(ADODB_FETCH_ASSOC);<br> $rs2 = $db->Execute('select * from table');<br> print_r($rs1->fields); # shows <i>array([0]=>'v0',[1] =>'v1')</i>
|
|
print_r($rs2->fields); # shows <i>array(['col1']=>'v0',['col2'] =>'v1')</i>
|
|
</pre>
|
|
<p> </p>
|
|
<p>To get the number of rows in the select statement, you can use <font face="Courier New, Courier, mono">$recordSet-><a href="#recordcount">RecordCount</a>()</font>.
|
|
Note that it can return -1 if the number of rows returned cannot be determined.</p>
|
|
<h3>Example 2: Advanced Select with Field Objects<a name="ex2"></a></h3>
|
|
<p>Select a table, display the first two columns. If the second column is a date
|
|
or timestamp, reformat the date to US format.</p>
|
|
<pre><?<br><font face="Courier New, Courier, mono"><b>include</b>('adodb.inc.php'); # load code common to ADOdb<br>$<font color="#660000">conn</font> = &ADONewConnection('access'); # create a connection<br>$<font color="#660000">conn</font>->PConnect('northwind'); # connect to MS-Access, northwind dsn<br>$<font color="#660000">recordSet</font> = &$<font color="#660000">conn</font>->Execute('select CustomerID,OrderDate from Orders');<br>if (!$<font color="#660000">recordSet</font>) <br> print $<font color="#660000">conn</font>->ErrorMsg();<br>else<br><b>while</b> (!$<font color="#660000">recordSet</font>->EOF) {<br> $<font color="#660000">fld</font> = <font color="#336600"><b>$</b><font color="#660000">recordSet</font><b>->FetchField</b></font><font color="#006600">(</font>1<font color="#006600">);</font>
|
|
$<font color="#660000">type</font> = <font color="#336600"><b>$</b><font color="#660000">recordSet</font><b>->MetaType</b></font>($fld->type);<br><br> <b>if</b> ( $<font color="#660000">type</font> == 'D' || $<font color="#660000">type</font> == 'T') <br> <b>print</b> $<font color="#660000">recordSet</font>->fields[0].' '.<br> <b><font color="#336600">$</font></b><font color="#660000">recordSet</font><b><font color="#336600">->UserDate</font></b>($<font color="#660000">recordSet</font>->fields[1],'<b>m/d/Y</b>').'<BR>';<br> <b>else </b>
|
|
<b>print</b> $<font color="#660000">recordSet</font>->fields[0].' '.$<font color="#660000">recordSet</font>->fields[1].'<BR>';<br><br> $<font color="#660000">recordSet</font>->MoveNext();<br>}</font><font face="Courier New, Courier, mono">
|
|
$<font color="#660000">recordSet</font>->Close(); # optional<br>$<font color="#660000">conn</font>->Close(); # optional<br></font>
|
|
?>
|
|
</pre>
|
|
<p>In this example, we check the field type of the second column using <font face="Courier New, Courier, mono"><a href="#fetchfield">FetchField</a>().</font>
|
|
This returns an object with at least 3 fields.</p>
|
|
<ul>
|
|
<li><b>name</b>: name of column</li>
|
|
<li> <b>type</b>: native field type of column</li>
|
|
<li> <b>max_length</b>: maximum length of field. Some databases such as MySQL
|
|
do not return the maximum length of the field correctly. In these cases max_length
|
|
will be set to -1.</li>
|
|
</ul>
|
|
<p>We then use <font face="Courier New, Courier, mono"><a href="#metatype">MetaType</a>()</font>
|
|
to translate the native type to a <i>generic</i> type. Currently the following
|
|
<i>generic</i> types are defined:</p>
|
|
<ul>
|
|
<li><b>C</b>: character fields that should be shown in a <input type="text">
|
|
tag.</li>
|
|
<li><b>X</b>: TeXt, large text fields that should be shown in a <textarea></li>
|
|
<li><b>B</b>: Blobs, or Binary Large Objects. Typically images.
|
|
</li><li><b>D</b>: Date field</li>
|
|
<li><b>T</b>: Timestamp field</li>
|
|
<li><b>L</b>: Logical field (boolean or bit-field)</li>
|
|
<li><b>I</b>: Integer field</li>
|
|
<li><b>N</b>: Numeric field. Includes autoincrement, numeric, floating point,
|
|
real and integer. </li>
|
|
<li><b>R</b>: Serial field. Includes serial, autoincrement integers. This works
|
|
for selected databases. </li>
|
|
</ul>
|
|
<p>If the metatype is of type date or timestamp, then we print it using the user
|
|
defined date format with <font face="Courier New, Courier, mono"><a href="#userdate">UserDate</a>(),</font>
|
|
which converts the PHP SQL date string format to a user defined one. Another
|
|
use for <font face="Courier New, Courier, mono"><a href="#metatype">MetaType</a>()</font>
|
|
is data validation before doing an SQL insert or update.</p>
|
|
<h3>Example 3: Inserting<a name="ex3"></a></h3>
|
|
<p>Insert a row to the Orders table containing dates and strings that need to
|
|
be quoted before they can be accepted by the database, eg: the single-quote
|
|
in the word <i>John's</i>.</p>
|
|
<pre><?<br><b>include</b>('adodb.inc.php'); # load code common to ADOdb<br>$<font color="#660000">conn</font> = &ADONewConnection('access'); # create a connection<br><br>$<font color="#660000">conn</font>->PConnect('northwind'); # connect to MS-Access, northwind dsn<br>$<font color="#660000">shipto</font> = <font color="#006600"><b>$conn->qstr</b></font>("<i>John's Old Shoppe</i>");<br><br>$<font color="#660000">sql</font> = "insert into orders (customerID,EmployeeID,OrderDate,ShipName) ";<br>$<font color="#660000">sql</font> .= "values ('ANATR',2,".<b><font color="#006600">$conn->DBDate(</font>time()<font color="#006600">)</font></b><font color="#006600">.</font>",$<font color="#660000">shipto</font>)";<br><br><b>if</b> ($<font color="#660000">conn</font>->Execute($<font color="#660000">sql</font>) <font color="#336600"><b>=== false</b></font>) {<br> <b>print</b> 'error inserting: '.<font color="#336600"><b>$conn->ErrorMsg()</b></font>.'<BR>';<br>}<br>?><br></pre>
|
|
<p>In this example, we see the advanced date and quote handling facilities of
|
|
ADOdb. The unix timestamp (which is a long integer) is appropriately formated
|
|
for Access with <font face="Courier New, Courier, mono"><a href="#dbdate">DBDate</a>()</font>,
|
|
and the right escape character is used for quoting the <i>John's Old Shoppe</i>,
|
|
which is<b> </b><i>John'<b>'</b>s Old Shoppe</i> and not PHP's default <i>John<b>'</b>s
|
|
Old Shoppe</i> with <font face="Courier New, Courier, mono"><a href="#qstr">qstr</a>()</font>.
|
|
</p>
|
|
<p>Observe the error-handling of the Execute statement. False is returned by<font face="Courier New, Courier, mono">
|
|
<a href="#execute">Execute</a>() </font>if an error occured. The error message
|
|
for the last error that occurred is displayed in <font face="Courier New, Courier, mono"><a href="#errormsg">ErrorMsg</a>()</font>.
|
|
Note: <i>php_track_errors</i> might have to be enabled for error messages to
|
|
be saved.</p>
|
|
<h3> Example 4: Debugging<a name="ex4"></a></h3>
|
|
<pre><?<br><b>include</b>('adodb.inc.php'); # load code common to ADOdb<br>$<font color="#663300">conn</font> = &ADONewConnection('access'); # create a connection<br>$<font color="#663300">conn</font>->PConnect('northwind'); # connect to MS-Access, northwind dsn<br><font>$<font color="#663300">shipto</font> = <b>$conn->qstr</b>("John's Old Shoppe");<br>$<font color="#663300">sql</font> = "insert into orders (customerID,EmployeeID,OrderDate,ShipName) ";<br>$<font color="#663300">sql</font> .= "values ('ANATR',2,".$<font color="#663300">conn</font>->FormatDate(time()).",$shipto)";<br><b><font color="#336600">$<font color="#663300">conn</font>->debug = true;</font></b>
|
|
<b>if</b> ($<font color="#663300">conn</font>->Execute($sql) <b>=== false</b>) <b>print</b> 'error inserting';</font>
|
|
?>
|
|
</pre>
|
|
<p>In the above example, we have turned on debugging by setting <b>debug = true</b>.
|
|
This will display the SQL statement before execution, and also show any error
|
|
messages. There is no need to call <font face="Courier New, Courier, mono"><a href="#errormsg">ErrorMsg</a>()</font>
|
|
in this case. For displaying the recordset, see the <font face="Courier New, Courier, mono"><a href="#exrs2html">rs2html</a>()
|
|
</font>example.</p>
|
|
<p>Also see the section on <a href="#errorhandling">Custom Error Handlers</a>.</p>
|
|
<h3>Example 5: MySQL and Menus<a name="ex5"></a></h3>
|
|
<p>Connect to MySQL database <i>agora</i>, and generate a <select> menu
|
|
from an SQL statement where the <option> captions are in the 1st column,
|
|
and the value to send back to the server is in the 2nd column.</p>
|
|
<pre><?<br><b>include</b>('adodb.inc.php'); # load code common to ADOdb<br>$<font color="#663300">conn</font> = &ADONewConnection('mysql'); # create a connection<br>$<font color="#663300">conn</font>->PConnect('localhost','userid','','agora');# connect to MySQL, agora db<br><font>$<font color="#663300">sql</font> = 'select CustomerName, CustomerID from customers';<br>$<font color="#663300">rs</font> = $<font color="#663300">conn</font>->Execute($sql);<br><b>print</b> <b><font color="#336600">$<font color="#663300">rs</font>->GetMenu('GetCust','Mary Rosli');<br>?></font></b></font></pre>
|
|
<p>Here we define a menu named GetCust, with the menu option 'Mary Rosli' selected.
|
|
See <a href="#getmenu"><font face="Courier New, Courier, mono">GetMenu</font></a><font face="Courier New, Courier, mono">()</font>.
|
|
We also have functions that return the recordset as an array: <font face="Courier New, Courier, mono"><a href="#getarray">GetArray</a>()</font>,
|
|
and as an associative array with the key being the first column: <a href="#getassoc1">GetAssoc</a>().</p>
|
|
<h3>Example 6: Connecting to 2 Databases At Once<a name="ex6"></a></h3>
|
|
<pre><?<br><b>include</b>('adodb.inc.php'); # load code common to ADOdb<br>$<font color="#663300">conn1</font> = &ADONewConnection('mysql'); # create a mysql connection<br>$<font color="#663300">conn2</font> = &ADONewConnection('oracle'); # create a oracle connection<br><br>$conn1->PConnect($server, $userid, $password, $database);<br>$conn2->PConnect(false, $ora_userid, $ora_pwd, $oraname);<br><br>$conn1->Execute('insert ...');<br>$conn2->Execute('update ...');<br>?></pre>
|
|
<p>
|
|
</p><h3>Example 7: Generating Update and Insert SQL<a name="ex7"></a></h3>
|
|
ADOdb 1.31 and later supports two new recordset functions: GetUpdateSQL( ) and
|
|
GetInsertSQL( ). This allow you to perform a "SELECT * FROM table query WHERE...",
|
|
make a copy of the $rs->fields, modify the fields, and then generate the SQL to
|
|
update or insert into the table automatically.
|
|
<p> We show how the functions can be used when accessing a table with the following
|
|
fields: (ID, FirstName, LastName, Created).
|
|
</p><p> Before these functions can be called, you need to initialize the recordset
|
|
by performing a select on the table. Idea and code by Jonathan Younger jyounger#unilab.com.
|
|
Since ADOdb 2.42, you can pass a table name instead of a recordset into
|
|
GetInsertSQL (in $rs), and it will generate an insert statement for that table.
|
|
</p><p>
|
|
</p><pre><?<br>#==============================================<br># SAMPLE GetUpdateSQL() and GetInsertSQL() code<br>#==============================================<br>include('adodb.inc.php');<br>include('tohtml.inc.php');<br><br>#==========================<br># This code tests an insert<br><br>$sql = "SELECT * FROM ADOXYZ WHERE id = -1"; <br># Select an empty record from the database<br><br>$conn = &ADONewConnection("mysql"); # create a connection<br>$conn->debug=1;<br>$conn->PConnect("localhost", "admin", "", "test"); # connect to MySQL, testdb<br>$rs = $conn->Execute($sql); # Execute the query and get the empty recordset<br><br>$record = array(); # Initialize an array to hold the record data to insert<br><br># Set the values for the fields in the record<br># Note that field names are case-insensitive<br>$record["firstname"] = "Bob";<br>$record["lastNamE"] = "Smith";<br>$record["creaTed"] = time();<br><br># Pass the empty recordset and the array containing the data to insert<br># into the GetInsertSQL function. The function will process the data and return<br># a fully formatted insert sql statement.<br>$insertSQL = $conn->GetInsertSQL($rs, $record);<br><br>$conn->Execute($insertSQL); # Insert the record into the database<br><br>#==========================<br># This code tests an update<br><br>$sql = "SELECT * FROM ADOXYZ WHERE id = 1"; <br># Select a record to update<br><br>$rs = $conn->Execute($sql); # Execute the query and get the existing record to update<br><br>$record = array(); # Initialize an array to hold the record data to update<br><br># Set the values for the fields in the record<br># Note that field names are case-insensitive<br>$record["firstname"] = "Caroline";<br>$record["LasTnAme"] = "Smith"; # Update Caroline's lastname from Miranda to Smith<br><br># Pass the single record recordset and the array containing the data to update<br># into the GetUpdateSQL function. The function will process the data and return<br># a fully formatted update sql statement with the correct WHERE clause.<br># If the data has not changed, no recordset is returned<br>$updateSQL = $conn->GetUpdateSQL($rs, $record);<br><br>$conn->Execute($updateSQL); # Update the record in the database<br>$conn->Close();<br>?><br></pre>
|
|
<a name="ADODB_FORCE_TYPE"></a>
|
|
<b>$ADODB_FORCE_TYPE</b><p>
|
|
The behaviour of GetUpdateSQL() and GetInsertSQL()
|
|
when converting empty or null PHP variables to SQL is controlled by the
|
|
global $ADODB_FORCE_TYPE variable. Set it to one of the values below. Default
|
|
is ADODB_FORCE_VALUE (3):
|
|
</p><pre>0 = ignore empty fields. All empty fields in array are ignored.<br>1 = force null. All empty, php null and string 'null' fields are changed to sql NULL values.<br>2 = force empty. All empty, php null and string 'null' fields are changed to sql empty '' or 0 values.<br>3 = force value. Value is left as it is. Php null and string 'null' are set to sql NULL values and <br> empty fields '' are set to empty '' sql values.<br><br>define('ADODB_FORCE_IGNORE',0);<br>define('ADODB_FORCE_NULL',1);<br>define('ADODB_FORCE_EMPTY',2);<br>define('ADODB_FORCE_VALUE',3);<br></pre>
|
|
<p>
|
|
Thanks to Niko (nuko#mbnet.fi) for the $ADODB_FORCE_TYPE code.
|
|
</p><p>
|
|
Note: the constant ADODB_FORCE_NULLS is obsolete since 4.52 and is ignored. Set $ADODB_FORCE_TYPE = ADODB_FORCE_NULL
|
|
for equivalent behaviour.
|
|
|
|
</p><p>
|
|
</p><h3>Example 8: Implementing Scrolling with Next and Previous<a name="ex8"></a></h3>
|
|
<p> The following code creates a very simple recordset pager, where you can scroll
|
|
from page to page of a recordset.</p>
|
|
<pre>include_once('../adodb.inc.php');<br>include_once('../adodb-pager.inc.php');<br>session_start();<br><br>$db = NewADOConnection('mysql');<br><br>$db->Connect('localhost','root','','xphplens');<br><br>$sql = "select * from adoxyz ";<br><br>$pager = new ADODB_Pager($db,$sql);<br>$pager->Render($rows_per_page=5);</pre>
|
|
<p>This will create a basic record pager that looks like this: <a name="scr"></a>
|
|
</p><p>
|
|
<table bgcolor="beige" border="1">
|
|
<tbody><tr>
|
|
<td> <a href="#scr"><code>|<</code></a> <a href="#scr"><code><<</code></a>
|
|
<a href="#scr"><code>>></code></a> <a href="#scr"><code>>|</code></a>
|
|
</td>
|
|
</tr>
|
|
<tr>
|
|
<td><table bgcolor="white" border="1" cols="4" width="100%">
|
|
<tbody><tr><th>ID</th>
|
|
<th>First Name</th>
|
|
<th>Last Name</th>
|
|
<th>Date Created</th>
|
|
</tr><tr>
|
|
<td align="right">36 </td>
|
|
<td>Alan </td>
|
|
<td>Turing </td>
|
|
<td>Sat 06, Oct 2001 </td>
|
|
</tr>
|
|
<tr>
|
|
<td align="right">37 </td>
|
|
<td>Serena </td>
|
|
<td>Williams </td>
|
|
<td>Sat 06, Oct 2001 </td>
|
|
</tr>
|
|
<tr>
|
|
<td align="right">38 </td>
|
|
<td>Yat Sun </td>
|
|
<td>Sun </td>
|
|
<td>Sat 06, Oct 2001 </td>
|
|
</tr>
|
|
<tr>
|
|
<td align="right">39 </td>
|
|
<td>Wai Hun </td>
|
|
<td>See </td>
|
|
<td>Sat 06, Oct 2001 </td>
|
|
</tr>
|
|
<tr>
|
|
<td align="right">40 </td>
|
|
<td>Steven </td>
|
|
<td>Oey </td>
|
|
<td>Sat 06, Oct 2001 </td>
|
|
</tr>
|
|
</tbody></table></td>
|
|
</tr>
|
|
<tr>
|
|
<td><font size="-1">Page 8/10</font></td>
|
|
</tr>
|
|
</tbody></table>
|
|
</p><p>The number of rows to display at one time is controled by the Render($rows)
|
|
method. If you do not pass any value to Render(), ADODB_Pager will default to
|
|
10 records per page.
|
|
</p><p>You can control the column titles by modifying your SQL (supported by most
|
|
databases):
|
|
</p><pre>$sql = 'select id as "ID", firstname as "First Name", <br> lastname as "Last Name", created as "Date Created" <br> from adoxyz';</pre>
|
|
<p>The above code can be found in the <i>adodb/tests/testpaging.php</i> example
|
|
included with this release, and the class ADODB_Pager in <i>adodb/adodb-pager.inc.php</i>.
|
|
The ADODB_Pager code can be adapted by a programmer so that the text links can
|
|
be replaced by images, and the dull white background be replaced with more interesting
|
|
colors.
|
|
</p><p>You can also allow display of html by setting $pager->htmlSpecialChars = false.
|
|
</p><p>Some of the code used here was contributed by Iván Oliva and Cornel
|
|
G. </p>
|
|
<h3><a name="ex9"></a>Example 9: Exporting in CSV or Tab-Delimited Format</h3>
|
|
<p>We provide some helper functions to export in comma-separated-value (CSV) and
|
|
tab-delimited formats:</p>
|
|
<pre><b>include_once('/path/to/adodb/toexport.inc.php');</b><br>include_once('/path/to/adodb/adodb.inc.php');<br>
|
|
$db = &NewADOConnection('mysql');<br>$db->Connect($server, $userid, $password, $database);<br><br>$rs = $db->Execute('select fname as "First Name", surname as "Surname" from table');<br><br>print "<pre>";<br>print <b>rs2csv</b>($rs); # return a string, CSV format<p>print '<hr>';<br><br>$rs->MoveFirst(); # note, some databases do not support MoveFirst<br>print <b>rs2tab</b>($rs,<i>false</i>); # return a string, tab-delimited<br> # false == suppress field names in first line</p>print '<hr>';<br>$rs->MoveFirst();<br><b>rs2tabout</b>($rs); # send to stdout directly (there is also an rs2csvout function)<br>print "</pre>";<br><br>$rs->MoveFirst();<br>$fp = fopen($path, "w");<br>if ($fp) {<br> <b>rs2csvfile</b>($rs, $fp); # write to file (there is also an rs2tabfile function)<br> fclose($fp);<br>}<br></pre>
|
|
<p> Carriage-returns or newlines are converted to spaces. Field names are returned
|
|
in the first line of text. Strings containing the delimiter character are quoted
|
|
with double-quotes. Double-quotes are double-quoted again. This conforms to
|
|
Excel import and export guide-lines.
|
|
</p><p>All the above functions take as an optional last parameter, $addtitles which
|
|
defaults to <i>true</i>. When set to <i>false</i> field names in the first line
|
|
are suppressed. <br>
|
|
</p><h3>Example 10: Recordset Filters<a name="ex10"></a></h3>
|
|
<p>Sometimes we want to pre-process all rows in a recordset before we use it.
|
|
For example, we want to ucwords all text in recordset.
|
|
</p><pre>include_once('adodb/rsfilter.inc.php');<br>include_once('adodb/adodb.inc.php');<br><br>// ucwords() every element in the recordset<br>function do_ucwords(&$arr,$rs)<br>{<br> foreach($arr as $k => $v) {<br> $arr[$k] = ucwords($v);<br> }<br>}<br><br>$db = NewADOConnection('mysql');<br>$db->PConnect('server','user','pwd','db');<br><br>$rs = $db->Execute('select ... from table');<br>$rs = <b>RSFilter</b>($rs,'do_ucwords');<br></pre>
|
|
<p>The <i>RSFilter</i> function takes 2 parameters, the recordset, and the name
|
|
of the <i>filter</i> function. It returns the processed recordset scrolled to
|
|
the first record. The <i>filter</i> function takes two parameters, the current
|
|
row as an array, and the recordset object. For future compatibility, you should
|
|
not use the original recordset object. </p>
|
|
<h3>Example 11:<a name="ex11"></a> Smart Transactions</h3>
|
|
The old way of doing transactions required you to use
|
|
<pre>$conn-><b>BeginTrans</b>();<br>$ok = $conn->Execute($sql);<br>if ($ok) $ok = $conn->Execute($sql2);<br>if (!$ok) $conn-><b>RollbackTrans</b>();<br>else $conn-><b>CommitTrans</b>();<br></pre>
|
|
This is very complicated for large projects because you have to track the error
|
|
status. Smart Transactions is much simpler. You start a smart transaction by calling
|
|
StartTrans():
|
|
<pre>$conn-><b>StartTrans</b>();<br>$conn->Execute($sql);<br>$conn->Execute($Sql2);<br>$conn-><b>CompleteTrans</b>();<br></pre>
|
|
CompleteTrans() detects when an SQL error occurs, and will Rollback/Commit as
|
|
appropriate. To specificly force a rollback even if no error occured, use FailTrans().
|
|
Note that the rollback is done in CompleteTrans(), and not in FailTrans().
|
|
<pre>$conn-><b>StartTrans</b>();<br>$conn->Execute($sql);<br>if (!CheckRecords()) $conn-><strong>FailTrans</strong>();<br>$conn->Execute($Sql2);<br>$conn-><b>CompleteTrans</b>();<br></pre>
|
|
<p>You can also check if a transaction has failed, using HasFailedTrans(), which
|
|
returns true if FailTrans() was called, or there was an error in the SQL execution.
|
|
Make sure you call HasFailedTrans() before you call CompleteTrans(), as it is
|
|
only works between StartTrans/CompleteTrans.
|
|
</p><p>Lastly, StartTrans/CompleteTrans is nestable, and only the outermost block
|
|
is executed. In contrast, BeginTrans/CommitTrans/RollbackTrans is NOT nestable.
|
|
</p><pre>$conn-><strong>StartTrans</strong>();<br>$conn->Execute($sql);<br> $conn-><strong>StartTrans</strong>(); <font color="#006600"># ignored</font>
|
|
if (!CheckRecords()) $conn->FailTrans();
|
|
$conn-><strong>CompleteTrans</strong>(); <font color="#006600"># ignored</font>
|
|
$conn->Execute($Sql2);
|
|
$conn-><strong>CompleteTrans</strong>();<br></pre>
|
|
<p>Note: Savepoints are currently not supported.
|
|
</p><h2><a name="errorhandling"></a>Using Custom Error Handlers and PEAR_Error</h2>
|
|
<p>ADOdb supports PHP5 exceptions. Just include <i>adodb-exceptions.inc.php</i> and you can now
|
|
catch exceptions on errors as they occur.
|
|
</p><pre> <b>include("../adodb-exceptions.inc.php");</b> <br> include("../adodb.inc.php"); <br> try { <br> $db = NewADOConnection("oci8://scott:bad-password@mytns/"); <br> } catch (exception $e) { <br> var_dump($e); <br> adodb_backtrace($e->gettrace());<br> } <br></pre>
|
|
<p> ADOdb also provides two custom handlers which you can modify for your needs. The
|
|
first one is in the <b>adodb-errorhandler.inc.php</b> file. This makes use of
|
|
the standard PHP functions <a href="http://php.net/error_reporting">error_reporting</a>
|
|
to control what error messages types to display, and <a href="http://php.net/trigger_error">trigger_error</a>
|
|
which invokes the default PHP error handler.
|
|
</p><p> Including the above file will cause <i>trigger_error($errorstring,E_USER_ERROR)</i>
|
|
to be called when<br>
|
|
(a) Connect() or PConnect() fails, or <br>
|
|
(b) a function that executes SQL statements such as Execute() or SelectLimit()
|
|
has an error.<br>
|
|
(c) GenID() appears to go into an infinite loop.
|
|
</p><p> The $errorstring is generated by ADOdb and will contain useful debugging information
|
|
similar to the error.log data generated below. This file adodb-errorhandler.inc.php
|
|
should be included before you create any ADOConnection objects.
|
|
</p><p> If you define error_reporting(0), no errors will be passed to the error handler.
|
|
If you set error_reporting(E_ALL), all errors will be passed to the error handler.
|
|
You still need to use <b>ini_set("display_errors", "0" or "1")</b> to control
|
|
the display of errors.
|
|
</p><pre><?php<br><b>error_reporting(E_ALL); # pass any error messages triggered to error handler<br>include('adodb-errorhandler.inc.php');</b>
|
|
include('adodb.inc.php');
|
|
include('tohtml.inc.php');
|
|
$c = NewADOConnection('mysql');
|
|
$c->PConnect('localhost','root','','northwind');
|
|
$rs=$c->Execute('select * from productsz'); #invalid table productsz');
|
|
if ($rs) rs2html($rs);
|
|
?>
|
|
</pre>
|
|
<p> If you want to log the error message, you can do so by defining the following
|
|
optional constants ADODB_ERROR_LOG_TYPE and ADODB_ERROR_LOG_DEST. ADODB_ERROR_LOG_TYPE
|
|
is the error log message type (see <a href="http://php.net/error_log">error_log</a>
|
|
in the PHP manual). In this case we set it to 3, which means log to the file
|
|
defined by the constant ADODB_ERROR_LOG_DEST.
|
|
</p><pre><?php<br><b>error_reporting(E_ALL); # report all errors<br>ini_set("display_errors", "0"); # but do not echo the errors<br>define('ADODB_ERROR_LOG_TYPE',3);<br>define('ADODB_ERROR_LOG_DEST','C:/errors.log');<br>include('adodb-errorhandler.inc.php');</b>
|
|
include('adodb.inc.php');
|
|
include('tohtml.inc.php');
|
|
|
|
$c = NewADOConnection('mysql');
|
|
$c->PConnect('localhost','root','','northwind');
|
|
$rs=$c->Execute('select * from productsz'); ## invalid table productsz
|
|
if ($rs) rs2html($rs);
|
|
?>
|
|
</pre>
|
|
The following message will be logged in the error.log file:
|
|
<pre>(2001-10-28 14:20:38) mysql error: [1146: Table 'northwind.productsz' doesn't exist] in<br> EXECUTE("select * from productsz")<br></pre>
|
|
The second error handler is <b>adodb-errorpear.inc.php</b>. This will create a
|
|
PEAR_Error derived object whenever an error occurs. The last PEAR_Error object
|
|
created can be retrieved using ADODB_Pear_Error().
|
|
<pre><?php<br><b>include('adodb-errorpear.inc.php');</b>
|
|
include('adodb.inc.php');
|
|
include('tohtml.inc.php');
|
|
$c = NewADOConnection('mysql');
|
|
$c->PConnect('localhost','root','','northwind');
|
|
$rs=$c->Execute('select * from productsz'); #invalid table productsz');
|
|
if ($rs) rs2html($rs);
|
|
else {
|
|
<b>$e = ADODB_Pear_Error();<br> echo '<p>',$e->message,'</p>';</b>
|
|
}
|
|
?>
|
|
</pre>
|
|
<p> You can use a PEAR_Error derived class by defining the constant ADODB_PEAR_ERROR_CLASS
|
|
before the adodb-errorpear.inc.php file is included. For easy debugging, you
|
|
can set the default error handler in the beginning of the PHP script to PEAR_ERROR_DIE,
|
|
which will cause an error message to be printed, then halt script execution:
|
|
</p><pre>include('PEAR.php');<br>PEAR::setErrorHandling('PEAR_ERROR_DIE');<br></pre>
|
|
<p> Note that we do not explicitly return a PEAR_Error object to you when an error
|
|
occurs. We return false instead. You have to call ADODB_Pear_Error() to get
|
|
the last error or use the PEAR_ERROR_DIE technique.
|
|
</p><h4>Error Messages</h4>
|
|
<p>Error messages are outputted using the static method ADOConnnection::outp($msg,$newline=true).
|
|
By default, it sends the messages to the client. You can override this to perform
|
|
error-logging.
|
|
</p><h2><a name="dsn"></a> Data Source Names</h2>
|
|
<p>We now support connecting using PEAR style DSN's. A DSN is a connection string
|
|
of the form:</p>
|
|
<p>$dsn = <i>"$driver://$username:$password@$hostname/$databasename"</i>;</p>
|
|
<p>An example:</p>
|
|
<pre> $username = 'root';<br> $password = '';<br> $hostname = 'localhost';<br> $databasename = 'xphplens';<br> $driver = 'mysql';<br> $dsn = "$driver://$username:$password@$hostname/$databasename"<br> $db = NewADOConnection(); <br> # DB::Connect($dsn) also works if you include 'adodb/adodb-pear.inc.php' at the top<br> $rs = $db->query('select firstname,lastname from adoxyz');<br> $cnt = 0;<br> while ($arr = $rs->fetchRow()) {<br> print_r($arr); print "<br>";<br> }</pre>
|
|
<p></p>
|
|
<p> <a href="#dsnsupport">More info and connection examples</a> on the DSN format.
|
|
|
|
</p><h2><a name="pear"></a>PEAR Compatibility</h2>
|
|
We support DSN's (see above), and the following functions:
|
|
<pre><b> DB_Common</b>
|
|
query - returns PEAR_Error on error
|
|
limitQuery - return PEAR_Error on error
|
|
prepare - does not return PEAR_Error on error
|
|
execute - does not return PEAR_Error on error
|
|
setFetchMode - supports ASSOC and ORDERED
|
|
errorNative
|
|
quote
|
|
nextID
|
|
disconnect
|
|
|
|
getOne
|
|
getAssoc
|
|
getRow
|
|
getCol
|
|
|
|
<b> DB_Result</b>
|
|
numRows - returns -1 if not supported
|
|
numCols
|
|
fetchInto - does not support passing of fetchmode
|
|
fetchRows - does not support passing of fetchmode
|
|
free
|
|
</pre>
|
|
<h2><a name="caching"></a>Caching of Recordsets</h2>
|
|
<p>ADOdb now supports caching of recordsets using the CacheExecute( ), CachePageExecute(
|
|
) and CacheSelectLimit( ) functions. There are similar to the non-cache functions,
|
|
except that they take a new first parameter, $secs2cache.
|
|
</p><p> An example:
|
|
</p><pre><b>include</b>('adodb.inc.php'); # load code common to ADOdb<br>$ADODB_CACHE_DIR = '/usr/ADODB_cache';<br>$<font color="#663300">conn</font> = &ADONewConnection('mysql'); # create a connection<br>$<font color="#663300">conn</font>->PConnect('localhost','userid','','agora');# connect to MySQL, agora db<br><font>$<font color="#663300">sql</font> = 'select CustomerName, CustomerID from customers';<br>$<font color="#663300">rs</font> = $<font color="#663300">conn</font>->CacheExecute(15,$sql);</font></pre>
|
|
<p><font> The first parameter is the number of seconds to cache
|
|
the query. Subsequent calls to that query will used the cached version stored
|
|
in $ADODB_CACHE_DIR. To force a query to execute and flush the cache, call CacheExecute()
|
|
with the first parameter set to zero. Alternatively, use the CacheFlush($sql)
|
|
call. </font></p>
|
|
<p><font>For the sake of security, we recommend you set <i>register_globals=off</i>
|
|
in php.ini if you are using $ADODB_CACHE_DIR.</font></p>
|
|
<p>In ADOdb 1.80 onwards, the secs2cache parameter is optional in CacheSelectLimit()
|
|
and CacheExecute(). If you leave it out, it will use the $connection->cacheSecs
|
|
parameter, which defaults to 60 minutes.
|
|
</p><pre> $conn->Connect(...);<br> $conn->cacheSecs = 3600*24; # cache 24 hours<br> $rs = $conn->CacheExecute('select * from table');<br></pre>
|
|
<p>Please note that magic_quotes_runtime should be turned off. <a href="http://phplens.com/lens/lensforum/msgs.php?LeNs#LensBM_forummsg">More
|
|
info</a>, and do not change $ADODB_FETCH_MODE (or SetFetchMode)
|
|
as the cached recordset will use the $ADODB_FETCH_MODE set when the query was executed. <font>
|
|
<h2><a name="pivot"></a>Pivot Tables</h2>
|
|
</font> </p><p><font>Since ADOdb 2.30, we support the generation of
|
|
SQL to create pivot tables, also known as cross-tabulations. For further explanation
|
|
read this DevShed <a href="http://www.devshed.com/Server_Side/MySQL/MySQLWiz/">Cross-Tabulation
|
|
tutorial</a>. We assume that your database supports the SQL case-when expression. </font></p>
|
|
<font>
|
|
<p>In this example, we will use the Northwind database from Microsoft. In the
|
|
database, we have a products table, and we want to analyze this table by <i>suppliers
|
|
versus product categories</i>. We will place the suppliers on each row, and
|
|
pivot on categories. So from the table on the left, we generate the pivot-table
|
|
on the right:</p>
|
|
</font>
|
|
<table align="center" border="0" cellpadding="2" cellspacing="2">
|
|
<tbody><tr>
|
|
<td>
|
|
<table align="center" border="1" cellpadding="2" cellspacing="2" width="142">
|
|
<tbody><tr>
|
|
<td><i>Supplier</i></td>
|
|
<td><i>Category</i></td>
|
|
</tr>
|
|
<tr>
|
|
<td>supplier1</td>
|
|
<td>category1</td>
|
|
</tr>
|
|
<tr>
|
|
<td>supplier2</td>
|
|
<td>category1</td>
|
|
</tr>
|
|
<tr>
|
|
<td>supplier2</td>
|
|
<td>category2</td>
|
|
</tr>
|
|
</tbody></table>
|
|
</td>
|
|
<td> <font face="Courier New, Courier, mono">--></font></td>
|
|
<td>
|
|
<table align="center" border="1" cellpadding="2" cellspacing="2">
|
|
<tbody><tr>
|
|
<td> </td>
|
|
<td><i>category1</i></td>
|
|
<td><i>category2</i></td>
|
|
<td><i>total</i></td>
|
|
</tr>
|
|
<tr>
|
|
<td><i>supplier1</i></td>
|
|
<td align="right">1</td>
|
|
<td align="right">0</td>
|
|
<td align="right">1</td>
|
|
</tr>
|
|
<tr>
|
|
<td><i>supplier2</i></td>
|
|
<td align="right">1</td>
|
|
<td align="right">1</td>
|
|
<td align="right">2</td>
|
|
</tr>
|
|
</tbody></table>
|
|
</td>
|
|
</tr>
|
|
</tbody></table>
|
|
<font>
|
|
</font><p><font>The following code will generate the SQL for a cross-tabulation:
|
|
</font></p><pre><font># Query the main "product" table<br># Set the rows to CompanyName<br># and the columns to the values of Categories<br># and define the joins to link to lookup tables <br># "categories" and "suppliers"<br>#<br> include "adodb/pivottable.php";<br> $sql = PivotTableSQL(<br> $gDB, # adodb connection<br> 'products p ,categories c ,suppliers s', # tables<br> 'CompanyName', # rows (multiple fields allowed)<br> 'CategoryName', # column to pivot on <br> 'p.CategoryID = c.CategoryID and s.SupplierID= p.SupplierID' # joins/where<br>);<br></font></pre>
|
|
|
|
<p><font> This will generate the following SQL:</font></p>
|
|
<p><code><font size="2">SELECT CompanyName, <br>
|
|
SUM(CASE WHEN CategoryName='Beverages' THEN 1 ELSE 0 END) AS "Beverages",
|
|
<br>
|
|
SUM(CASE WHEN CategoryName='Condiments' THEN 1 ELSE 0 END) AS "Condiments",
|
|
<br>
|
|
SUM(CASE WHEN CategoryName='Confections' THEN 1 ELSE 0 END) AS "Confections",
|
|
<br>
|
|
SUM(CASE WHEN CategoryName='Dairy Products' THEN 1 ELSE 0 END) AS "Dairy
|
|
Products", <br>
|
|
SUM(CASE WHEN CategoryName='Grains/Cereals' THEN 1 ELSE 0 END) AS "Grains/Cereals",
|
|
<br>
|
|
SUM(CASE WHEN CategoryName='Meat/Poultry' THEN 1 ELSE 0 END) AS "Meat/Poultry",
|
|
<br>
|
|
SUM(CASE WHEN CategoryName='Produce' THEN 1 ELSE 0 END) AS "Produce",
|
|
<br>
|
|
SUM(CASE WHEN CategoryName='Seafood' THEN 1 ELSE 0 END) AS "Seafood",
|
|
<br>
|
|
SUM(1) as Total <br>
|
|
FROM products p ,categories c ,suppliers s WHERE p.CategoryID = c.CategoryID
|
|
and s.SupplierID= p.SupplierID <br>
|
|
GROUP BY CompanyName</font></code></p>
|
|
<p> You can also pivot on <i>numerical columns</i> and <i>generate totals</i>
|
|
by using ranges. <font>This code was revised in ADODB 2.41
|
|
and is not backward compatible.</font> The second example shows this:</p>
|
|
<pre> $sql = PivotTableSQL(<br> $gDB, # adodb connection<br> 'products p ,categories c ,suppliers s', # tables<br> 'CompanyName', #<font> rows (multiple fields allowed)</font>
|
|
array( # column ranges
|
|
' 0 ' => 'UnitsInStock <= 0',
|
|
"1 to 5" => '0 < UnitsInStock and UnitsInStock <= 5',
|
|
"6 to 10" => '5 < UnitsInStock and UnitsInStock <= 10',
|
|
"11 to 15" => '10 < UnitsInStock and UnitsInStock <= 15',
|
|
"16+" => '15 < UnitsInStock'
|
|
),
|
|
' p.CategoryID = c.CategoryID and s.SupplierID= p.SupplierID', # joins/where
|
|
'UnitsInStock', # sum this field
|
|
'Sum ' # sum label prefix
|
|
);
|
|
</pre>
|
|
<p>Which generates: </p>
|
|
<p> <code> <font size="2">SELECT CompanyName, <br>
|
|
SUM(CASE WHEN UnitsInStock <= 0 THEN UnitsInStock ELSE 0 END) AS "Sum
|
|
0 ", <br>
|
|
SUM(CASE WHEN 0 < UnitsInStock and UnitsInStock <= 5 THEN UnitsInStock
|
|
ELSE 0 END) AS "Sum 1 to 5",<br>
|
|
SUM(CASE WHEN 5 < UnitsInStock and UnitsInStock <= 10 THEN UnitsInStock
|
|
ELSE 0 END) AS "Sum 6 to 10",<br>
|
|
SUM(CASE WHEN 10 < UnitsInStock and UnitsInStock <= 15 THEN UnitsInStock
|
|
ELSE 0 END) AS "Sum 11 to 15", <br>
|
|
SUM(CASE WHEN 15 < UnitsInStock THEN UnitsInStock ELSE 0 END) AS "Sum
|
|
16+", <br>
|
|
SUM(UnitsInStock) AS "Sum UnitsInStock", <br>
|
|
SUM(1) as Total,<br>
|
|
FROM products p ,categories c ,suppliers s WHERE p.CategoryID = c.CategoryID
|
|
and s.SupplierID= p.SupplierID <br>
|
|
GROUP BY CompanyName</font></code><font size="2"><br>
|
|
</font> </p>
|
|
<font><hr>
|
|
<h1>Class Reference<a name="ref"></a></h1>
|
|
<p>Function parameters with [ ] around them are optional.</p>
|
|
</font>
|
|
<h2>Global Variables</h2>
|
|
<h3><font><a name="adodb_countrecs"></a></font>$ADODB_COUNTRECS</h3>
|
|
<p>If the database driver API does not support counting the number of records
|
|
returned in a SELECT statement, the function RecordCount() is emulated when
|
|
the global variable $ADODB_COUNTRECS is set to true, which is the default.
|
|
We emulate this by buffering the records, which can take up large amounts
|
|
of memory for big recordsets. Set this variable to false for the best performance.
|
|
This variable is checked every time a query is executed, so you can selectively
|
|
choose which recordsets to count.</p>
|
|
<h3><font><a name="adodb_cache_dir"></a>$ADODB_CACHE_DIR</font></h3>
|
|
<font>
|
|
<p>If you are using recordset caching, this is the directory to save your recordsets
|
|
in. Define this before you call any caching functions such as CacheExecute(
|
|
). We recommend setting <i>register_globals=off</i> in php.ini if you use this
|
|
feature for security reasons.</p>
|
|
<p>If you are using Unix and apache, you might need to set your cache directory
|
|
permissions to something similar to the following:</p>
|
|
</font>
|
|
<p>chown -R apache /path/to/adodb/cache<br>
|
|
chgrp -R apache /path/to/adodb/cache </p>
|
|
<h3><font><a name="adodb_ansi_padding_off"></a>$ADODB_ANSI_PADDING_OFF</font></h3>
|
|
<p><font>Determines whether to right trim CHAR fields (and also VARCHAR for ibase/firebird).
|
|
Set to true to trim. Default is false. Currently works for oci8po, ibase and firebird
|
|
drivers. Added in ADOdb 4.01.
|
|
</font></p><h3><font><a name="adodb_lang"></a>$ADODB_LANG</font></h3>
|
|
<p><font>Determines the language used in MetaErrorMsg(). The default is 'en', for English.
|
|
To find out what languages are supported, see the files
|
|
in adodb/lang/adodb-$lang.inc.php, where $lang is the supported langauge.
|
|
</font></p><h3><font><a name="adodb_fetch_mode"></a>$ADODB_FETCH_MODE</font></h3>
|
|
<p><font>This is a global variable that determines how arrays are retrieved by recordsets.
|
|
The recordset saves this value on creation (eg. in Execute( ) or SelectLimit(
|
|
)), and any subsequent changes to $ADODB_FETCH_MODE have no affect on existing
|
|
recordsets, only on recordsets created in the future.</font></p>
|
|
<p><font>The following constants are defined:</font></p>
|
|
|
|
<p><font>define('ADODB_FETCH_DEFAULT',0);<br>
|
|
define('ADODB_FETCH_NUM',1);<br>
|
|
define('ADODB_FETCH_ASSOC',2);<br>
|
|
define('ADODB_FETCH_BOTH',3); </font></p>
|
|
<font>
|
|
</font><p><font> An example:
|
|
</font></p><pre><font> $ADODB_<b>FETCH_MODE</b> = ADODB_FETCH_NUM;<br> $rs1 = $db->Execute('select * from table');<br> $ADODB_<b>FETCH_MODE</b> = ADODB_FETCH_ASSOC;<br> $rs2 = $db->Execute('select * from table');<br> print_r($rs1->fields); # shows <i>array([0]=>'v0',[1] =>'v1')</i>
|
|
print_r($rs2->fields); # shows <i>array(['col1']=>'v0',['col2'] =>'v1')</i>
|
|
</font></pre>
|
|
<p><font> As you can see in the above example, both recordsets store and use different
|
|
fetch modes based on the $ADODB_FETCH_MODE setting when the recordset was
|
|
created by Execute().</font></p>
|
|
<p><font>If no fetch mode is predefined, the fetch mode defaults to ADODB_FETCH_DEFAULT.
|
|
The behaviour of this default mode varies from driver to driver, so do not
|
|
rely on ADODB_FETCH_DEFAULT. For portability, we recommend sticking to ADODB_FETCH_NUM
|
|
or ADODB_FETCH_ASSOC. Many drivers do not support ADODB_FETCH_BOTH.</font></p>
|
|
<p><font><strong>SetFetchMode Function</strong></font></p>
|
|
<p><font>If you have multiple connection objects, and want to have different fetch modes for each
|
|
connection, then use <a href="#setfetchmode">SetFetchMode</a>.
|
|
Once this function is called for a connection object, that connection object
|
|
will ignore the global variable $ADODB_FETCH_MODE and will use the internal
|
|
fetchMode property exclusively.</font></p>
|
|
<pre><font> $db->SetFetchMode(ADODB_FETCH_NUM);<br> $rs1 = $db->Execute('select * from table');<br> $db->SetFetchMode(ADODB_FETCH_ASSOC);<br> $rs2 = $db->Execute('select * from table');<br> print_r($rs1->fields); # shows <i>array([0]=>'v0',[1] =>'v1')</i>
|
|
print_r($rs2->fields); # shows <i>array(['col1']=>'v0',['col2'] =>'v1')</i></font></pre>
|
|
<p><font>To retrieve the previous fetch mode, you can use check the $db->fetchMode
|
|
property, or use the return value of SetFetchMode( ).
|
|
</font></p><p><font><strong><a name="adodb_assoc_case"></a>ADODB_ASSOC_CASE</strong></font></p>
|
|
<p><font>You can control the associative fetch case for certain drivers which behave
|
|
differently. For the sybase, oci8po, mssql, odbc and ibase drivers and all
|
|
drivers derived from them, ADODB_ASSOC_CASE will by default generate recordsets
|
|
where the field name keys are lower-cased. Use the constant ADODB_ASSOC_CASE
|
|
to change the case of the keys. There are 3 possible values:</font></p>
|
|
<p><font>0 = assoc lowercase field names. $rs->fields['orderid']<br>
|
|
1 = assoc uppercase field names. $rs->fields['ORDERID']<br>
|
|
2 = use native-case field names. $rs->fields['OrderID'] -- this is the
|
|
default since ADOdb 2.90</font></p>
|
|
<p><font>To use it, declare it before you incldue adodb.inc.php.</font></p>
|
|
<p><font>define('ADODB_ASSOC_CASE', 2); # use native-case for ADODB_FETCH_ASSOC<br>
|
|
include('adodb.inc.php'); </font></p>
|
|
<h3><font><a name="force_type"></a>$ADODB_FORCE_TYPE</font></h3>
|
|
<p><font>See the <a href="#ADODB_FORCE_TYPE">GetUpdateSQL tutorial</a>.
|
|
</font></p><hr>
|
|
<h2><font>ADOConnection<a name="adoconnection"></a></font></h2>
|
|
<p><font>Object that performs the connection to the database, executes SQL statements
|
|
and has a set of utility functions for standardising the format of SQL statements
|
|
for issues such as concatenation and date formats.</font></p>
|
|
<h3><font>ADOConnection Fields</font></h3>
|
|
<p><font><b>databaseType</b>: Name of the database system we are connecting to. Eg.
|
|
<b>odbc</b> or <b>mssql</b> or <b>mysql</b>.</font></p>
|
|
<p><font><b>dataProvider</b>: The underlying mechanism used to connect to the database.
|
|
Normally set to <b>native</b>, unless using <b>odbc</b> or <b>ado</b>.</font></p>
|
|
<p><font><b>host: </b>Name of server or data source name (DSN) to connect to.</font></p>
|
|
<p><font><b>database</b>: Name of the database or to connect to. If ado is used, it
|
|
will hold the ado data provider.</font></p>
|
|
<p><font><b>user</b>: Login id to connect to database. Password is not saved for security
|
|
reasons.</font></p>
|
|
<p><font><b>raiseErrorFn</b>: Allows you to define an error handling function. See adodb-errorhandler.inc.php
|
|
for an example.</font></p>
|
|
<p><font><b>debug</b>: Set to <i>true</i> to make debug statements to appear.</font></p>
|
|
<p><font><b>concat_operator</b>: Set to '+' or '||' normally. The operator used to concatenate
|
|
strings in SQL. Used by the <b><a href="#concat">Concat</a></b> function.</font></p>
|
|
<p><font><b>fmtDate</b>: The format used by the <b><a href="#dbdate">DBDate</a></b>
|
|
function to send dates to the database. is '#Y-m-d#' for Microsoft Access,
|
|
and ''Y-m-d'' for MySQL.</font></p>
|
|
<p><font><b>fmtTimeStamp: </b>The format used by the <b><a href="#dbtimestamp">DBTimeStamp</a></b>
|
|
function to send timestamps to the database. </font></p>
|
|
<p><font><b>true</b>: The value used to represent true.Eg. '.T.'. for Foxpro, '1' for
|
|
Microsoft SQL.</font></p>
|
|
<p><font><b>false: </b> The value used to represent false. Eg. '.F.'. for Foxpro, '0'
|
|
for Microsoft SQL.</font></p>
|
|
<p><font><b>replaceQuote</b>: The string used to escape quotes. Eg. double single-quotes
|
|
for Microsoft SQL, and backslash-quote for MySQL. Used by <a href="#qstr">qstr</a>.</font></p>
|
|
<p><font><b>autoCommit</b>: indicates whether automatic commit is enabled. Default is
|
|
true.</font></p>
|
|
<p><font><b>charSet</b>: set the default charset to use. Currently only interbase supports
|
|
this.</font></p>
|
|
<p><font><b>dialect</b>: set the default sql dialect to use. Currently only interbase
|
|
supports this.</font></p>
|
|
<p><font><b>metaTablesSQL</b>: SQL statement to return a list of available tables. Eg.
|
|
<i>SHOW TABLES</i> in MySQL.</font></p>
|
|
<p><font><b>genID</b>: The latest id generated by GenID() if supported by the database.</font></p>
|
|
<p><font><b>cacheSecs</b>: The number of seconds to cache recordsets if CacheExecute()
|
|
or CacheSelectLimit() omit the $secs2cache parameter. Defaults to 60 minutes.</font></p>
|
|
<p><font><b>sysDate</b>: String that holds the name of the database function to call
|
|
to get the current date. Useful for inserts and updates.</font></p>
|
|
<p><font><b>sysTimeStamp</b>: String that holds the name of the database function to
|
|
call to get the current timestamp/datetime value.</font></p>
|
|
<p><font><b>leftOuter</b>: String that holds operator for left outer join, if known.
|
|
Otherwise set to false.</font></p>
|
|
<p><font><b>rightOuter</b>: String that holds operator for left outer join, if known.
|
|
Otherwise set to false.</font></p>
|
|
<p><font><b>ansiOuter</b>: Boolean that if true indicates that ANSI style outer joins
|
|
are permitted. Eg. <i>select * from table1 left join table2 on p1=p2.</i></font></p>
|
|
<p><font><b>connectSID</b>: Boolean that indicates whether to treat the $database parameter
|
|
in connects as the SID for the oci8 driver. Defaults to false. Useful for
|
|
Oracle 8.0.5 and earlier.</font></p>
|
|
<p><font><b>autoRollback</b>: Persistent connections are auto-rollbacked in PConnect(
|
|
) if this is set to true. Default is false.</font></p>
|
|
<hr>
|
|
<h3><font>ADOConnection Main Functions</font></h3>
|
|
<p><font><b>ADOConnection( )</b></font></p>
|
|
<p><font>Constructor function. Do not call this directly. Use ADONewConnection( ) instead.</font></p>
|
|
<p><font><b>Connect<a name="connect"></a>($host,[$user],[$password],[$database])</b></font></p>
|
|
<p><font>Non-persistent connect to data source or server $<b>host</b>, using userid
|
|
$<b>user </b>and password $<b>password</b>. If the server supports multiple
|
|
databases, connect to database $<b>database</b>. </font></p>
|
|
<p><font>Returns true/false depending on connection success. Since 4.23, null is returned if the extension is not loaded.</font></p>
|
|
<p><font>ADO Note: If you are using a Microsoft ADO and not OLEDB, you can set the $database
|
|
parameter to the OLEDB data provider you are using.</font></p>
|
|
<p><font>PostgreSQL: An alternative way of connecting to the database is to pass the
|
|
standard PostgreSQL connection string in the first parameter $host, and the
|
|
other parameters will be ignored.</font></p>
|
|
<p><font>For Oracle and Oci8, there are two ways to connect. First is to use the TNS
|
|
name defined in your local tnsnames.ora (or ONAMES or HOSTNAMES). Place the
|
|
name in the $database field, and set the $host field to false. Alternatively,
|
|
set $host to the server, and $database to the database SID, this bypassed
|
|
tnsnames.ora.
|
|
</font></p><p><font>Examples:
|
|
</font></p><pre><font> # $oraname in tnsnames.ora/ONAMES/HOSTNAMES<br> $conn->Connect(false, 'scott', 'tiger', $oraname); <br> $conn->Connect('server:1521', 'scott', 'tiger', 'ServiceName'); # bypass tnsnames.ora</font></pre>
|
|
<p><font>There are many examples of connecting to a database.
|
|
See <a href="#connect_ex">Connection Examples</a> for many examples.
|
|
|
|
</font></p><p><font><b>PConnect<a name="pconnect"></a>($host,[$user],[$password],[$database])</b></font></p>
|
|
<p><font>Persistent connect to data source or server $<b>host</b>, using userid $<b>user</b>
|
|
and password $<b>password</b>. If the server supports multiple databases,
|
|
connect to database $<b>database</b>.</font></p>
|
|
<p><font>We now perform a rollback on persistent connection for selected databases since
|
|
2.21, as advised in the PHP manual. See change log or source code for which
|
|
databases are affected.
|
|
</font></p><p><font>Returns true/false depending on connection. Since 4.23, null is returned if the extension is not loaded.
|
|
See Connect( ) above for more info.</font></p>
|
|
<p><font>Since ADOdb 2.21, we also support autoRollback. If you set:</font></p>
|
|
|
|
<pre> $conn = &NewADOConnection('mysql');<br> $conn->autoRollback = true; # default is false<br> $conn->PConnect(...); # rollback here</pre>
|
|
<p> Then when doing a persistent connection with PConnect( ), ADOdb will
|
|
perform a rollback first. This is because it is documented that PHP is
|
|
not guaranteed to rollback existing failed transactions when
|
|
persistent connections are used. This is implemented in Oracle,
|
|
MySQL, PgSQL, MSSQL, ODBC currently.
|
|
</p><p>Since ADOdb 3.11, you can force non-persistent
|
|
connections even if PConnect is called by defining the constant
|
|
ADODB_NEVER_PERSIST before you call PConnect.
|
|
</p><p>
|
|
Since 4.23, null is returned if the extension is not loaded.
|
|
</p><p><b>NConnect<a name="nconnect"></a>($host,[$user],[$password],[$database])</b></p>
|
|
<p>Always force a new connection. In contrast, PHP sometimes reuses connections
|
|
when you use Connect() or PConnect(). Currently works only on mysql (PHP 4.3.0
|
|
or later), postgresql and oci8-derived drivers. For other drivers, NConnect() works like
|
|
Connect().</p>
|
|
<p><font><b>IsConnected( )<a name="isconnected"></a></b></font></p>
|
|
<p>
|
|
<font>Returns true if connected to database. Added in 4.53.
|
|
|
|
</font></p><p><font><b>Execute<a name="execute"></a>($sql,$inputarr=false)</b></font></p>
|
|
<p><font>Execute SQL statement $<b>sql</b> and return derived class of ADORecordSet
|
|
if successful. Note that a record set is always returned on success, even
|
|
if we are executing an insert or update statement. You can also pass in $sql a statement prepared
|
|
in <a href="#prepare">Prepare()</a>.</font></p>
|
|
<p><font>Returns derived class of ADORecordSet. Eg. if connecting via mysql, then ADORecordSet_mysql
|
|
would be returned. False is returned if there was an error in executing the
|
|
sql.</font></p>
|
|
<p><font>The $inputarr parameter can be used for binding variables to parameters. Below
|
|
is an Oracle example:</font></p>
|
|
<pre><font> $conn->Execute("SELECT * FROM TABLE WHERE COND=:val", array('val'=> $val));<br> </font></pre>
|
|
<p><font>Another example, using ODBC,which uses the ? convention:</font></p>
|
|
<pre><font> $conn->Execute("SELECT * FROM TABLE WHERE COND=?", array($val));<br></font></pre>
|
|
<font><a name="binding"></a>
|
|
<i>Binding variables</i></font><p>
|
|
<font>Variable binding speeds the compilation and caching of SQL statements, leading
|
|
to higher performance. Currently Oracle, Interbase and ODBC supports variable binding.
|
|
Interbase/ODBC style ? binding is emulated in databases that do not support binding.
|
|
Note that you do not have to quote strings if you use binding.
|
|
</font></p><p><font> Variable binding in the odbc, interbase and oci8po drivers.
|
|
</font></p><pre><font>$rs = $db->Execute('select * from table where val=?', array('10'));<br></font></pre>
|
|
<font>Variable binding in the oci8 driver:
|
|
</font><pre><font>$rs = $db->Execute('select name from table where val=:key', <br> array('key' => 10));<br></font></pre>
|
|
<font><a name="bulkbind"></a>
|
|
<i>Bulk binding</i>
|
|
</font><p><font>Since ADOdb 3.80, we support bulk binding in Execute(), in which you pass in a 2-dimensional array to
|
|
be bound to an INSERT/UPDATE or DELETE statement.
|
|
</font></p><pre><font>$arr = array(<br> array('Ahmad',32),<br> array('Zulkifli', 24),<br> array('Rosnah', 21)<br> );<br>$ok = $db->Execute('insert into table (name,age) values (?,?)',$arr);<br></font></pre>
|
|
<p><font>This provides very high performance as the SQL statement is prepared first.
|
|
The prepared statement is executed repeatedly for each array row until all rows are completed,
|
|
or until the first error. Very useful for importing data.
|
|
|
|
</font></p><p><font><b>CacheExecute<a name="cacheexecute"></a>([$secs2cache,]$sql,$inputarr=false)</b></font></p>
|
|
<p><font>Similar to Execute, except that the recordset is cached for $secs2cache seconds
|
|
in the $ADODB_CACHE_DIR directory, and $inputarr only accepts 1-dimensional arrays.
|
|
If CacheExecute() is called again with the same $sql, $inputarr,
|
|
and also the same database, same userid, and the cached recordset
|
|
has not expired, the cached recordset is returned.
|
|
</font></p><pre><font> include('adodb.inc.php'); <br> include('tohtml.inc.php');<br> $ADODB_<b>CACHE_DIR</b> = '/usr/local/ADOdbcache';<br> $conn = &ADONewConnection('mysql'); <br> $conn->PConnect('localhost','userid','password','database');<br> $rs = $conn-><b>CacheExecute</b>(15, 'select * from table'); # cache 15 secs<br> rs2html($rs); /* recordset to html table */ <br></font></pre>
|
|
<p><font> Alternatively, since ADOdb 1.80, the $secs2cache parameter is optional:</font></p>
|
|
<pre><font> $conn->Connect(...);<br> $conn->cacheSecs = 3600*24; // cache 24 hours<br> $rs = $conn->CacheExecute('select * from table');<br></font></pre>
|
|
<font>If $secs2cache is omitted, we use the value
|
|
in $connection->cacheSecs (default is 3600 seconds, or 1 hour). Use CacheExecute()
|
|
only with SELECT statements.
|
|
</font><p><font>Performance note: I have done some benchmarks and found that they vary so greatly
|
|
that it's better to talk about when caching is of benefit. When your database
|
|
server is <i>much slower </i>than your Web server or the database is <i>very
|
|
overloaded </i>then ADOdb's caching is good because it reduces the load on
|
|
your database server. If your database server is lightly loaded or much faster
|
|
than your Web server, then caching could actually reduce performance. </font></p>
|
|
<p><font><b>ExecuteCursor<a name="executecursor"></a>($sql,$cursorName='rs',$parameters=false)</b></font></p>
|
|
<p><font>Execute an Oracle stored procedure, and returns an Oracle REF cursor variable as
|
|
a regular ADOdb recordset. Does not work with any other database except oci8.
|
|
Thanks to Robert Tuttle for the design.
|
|
</font></p><pre><font> $db = ADONewConnection("oci8"); <br> $db->Connect("foo.com:1521", "uid", "pwd", "FOO"); <br> $rs = $db->ExecuteCursor("begin :cursorvar := getdata(:param1); end;", <br> 'cursorvar',<br> array('param1'=>10)); <br> # $rs is now just like any other ADOdb recordset object<br> rs2html($rs);</font></pre>
|
|
<p><font>ExecuteCursor() is a helper function that does the following internally:
|
|
</font></p><pre><font> $stmt = $db->Prepare("begin :cursorvar := getdata(:param1); end;", true); <br> $db->Parameter($stmt, $cur, 'cursorvar', false, -1, OCI_B_CURSOR);<br> $rs = $db->Execute($stmt,$bindarr);<br></font></pre>
|
|
<p><font>ExecuteCursor only accepts 1 out parameter. So if you have 2 out parameters, use:
|
|
</font></p><pre><font> $vv = 'A%';<br> $stmt = $db->PrepareSP("BEGIN list_tabs(:crsr,:tt); END;");<br> $db->OutParameter($stmt, $cur, 'crsr', -1, OCI_B_CURSOR);<br> $db->OutParameter($stmt, $vv, 'tt', 32); # return varchar(32)<br> $arr = $db->GetArray($stmt);<br> print_r($arr);<br> echo " val = $vv"; ## outputs 'TEST'<br></font></pre>
|
|
<font>for the following PL/SQL:
|
|
</font><pre><font> TYPE TabType IS REF CURSOR RETURN TAB%ROWTYPE;<br><br> PROCEDURE list_tabs(tabcursor IN OUT TabType,tablenames IN OUT VARCHAR) IS<br> BEGIN<br> OPEN tabcursor FOR SELECT * FROM TAB WHERE tname LIKE tablenames;<br> tablenames := 'TEST';<br> END list_tabs;<br></font></pre>
|
|
<p><font><b>SelectLimit<a name="selectlimit"></a>($sql,$numrows=-1,$offset=-1,$inputarr=false)</b></font></p>
|
|
<p><font>Returns a recordset if successful. Returns false otherwise. Performs a select
|
|
statement, simulating PostgreSQL's SELECT statement, LIMIT $numrows OFFSET
|
|
$offset clause.</font></p>
|
|
<p><font>In PostgreSQL, SELECT * FROM TABLE LIMIT 3 will return the first 3 records
|
|
only. The equivalent is <code>$connection->SelectLimit('SELECT * FROM TABLE',3)</code>.
|
|
This functionality is simulated for databases that do not possess this feature.</font></p>
|
|
<p><font>And SELECT * FROM TABLE LIMIT 3 OFFSET 2 will return records 3, 4 and 5 (eg.
|
|
after record 2, return 3 rows). The equivalent in ADOdb is <code>$connection->SelectLimit('SELECT
|
|
* FROM TABLE',3,2)</code>.</font></p>
|
|
<p><font>Note that this is the <i>opposite</i> of MySQL's LIMIT clause. You can also
|
|
set <code>$connection->SelectLimit('SELECT * FROM TABLE',-1,10)</code> to
|
|
get rows 11 to the last row.</font></p>
|
|
<p><font>The last parameter $inputarr is for databases that support variable binding
|
|
such as Oracle oci8. This substantially reduces SQL compilation overhead.
|
|
Below is an Oracle example:</font></p>
|
|
<pre><font> $conn->SelectLimit("SELECT * FROM TABLE WHERE COND=:val", 100,-1,array('val'=> $val));<br> </font></pre>
|
|
<p><font>The oci8po driver (oracle portable driver) uses the more standard bind variable
|
|
of ?:
|
|
</font></p><pre><font> $conn->SelectLimit("SELECT * FROM TABLE WHERE COND=?", 100,-1,array('val'=> $val));<br></font></pre>
|
|
<p><font>
|
|
</font></p><p><font>Ron Wilson reports that SelectLimit does not work with UNIONs.
|
|
</font></p><p><font><b>CacheSelectLimit<a name="cacheselectlimit"></a>([$secs2cache,] $sql, $numrows=-1,$offset=-1,$inputarr=false)</b></font></p>
|
|
<p><font>Similar to SelectLimit, except that the recordset returned is cached for $secs2cache
|
|
seconds in the $ADODB_CACHE_DIR directory. </font></p>
|
|
<p><font>Since 1.80, $secs2cache has been optional, and you can define the caching time
|
|
in $connection->cacheSecs.</font></p>
|
|
|
|
<pre><font> $conn->Connect(...);<br> $conn->cacheSecs = 3600*24; // cache 24 hours<br> $rs = $conn->CacheSelectLimit('select * from table',10);</font></pre>
|
|
<font>
|
|
</font><p><font><b>CacheFlush<a name="cacheflush"></a>($sql=false,$inputarr=false)</b></font></p>
|
|
<p><font>Flush (delete) any cached recordsets for the SQL statement $sql in $ADODB_CACHE_DIR.
|
|
</font></p><p><font>If no parameter is passed in, then all adodb_*.cache files are deleted.
|
|
</font></p><p><font> If you want to flush all cached recordsets manually, execute the following
|
|
PHP code (works only under Unix): <br>
|
|
<code> system("rm -f `find ".$ADODB_CACHE_DIR." -name
|
|
adodb_*.cache`");</code></font></p>
|
|
<p><font>For general cleanup of all expired files, you should use <a href="http://www.superscripts.com/tutorial/crontab.html">crontab</a>
|
|
on Unix, or at.exe on Windows, and a shell script similar to the following:<font face="Courier New, Courier, mono"><br>
|
|
#------------------------------------------------------ <br>
|
|
# This particular example deletes files in the TMPPATH <br>
|
|
# directory with the string ".cache" in their name that <br>
|
|
# are more than 7 days old. <br>
|
|
#------------------------------------------------------ <br>
|
|
AGED=7 <br>
|
|
find ${TMPPATH} -mtime +$AGED | grep "\.cache" | xargs rm -f <br>
|
|
</font> </font></p>
|
|
<p><font><b>MetaError<a name="metaerror"></a>($errno=false)</b></font></p>
|
|
<p><font>Returns a virtualized error number, based on PEAR DB's error number system. You might
|
|
need to include adodb-error.inc.php before you call this function. The parameter $errno
|
|
is the native error number you want to convert. If you do not pass any parameter, MetaError
|
|
will call ErrorNo() for you and convert it. If the error number cannot be virtualized, MetaError
|
|
will return -1 (DB_ERROR).</font></p>
|
|
|
|
<p><font><b>MetaErrorMsg<a name="metaerrormsg"></a>($errno)</b></font></p>
|
|
<p><font>Pass the error number returned by MetaError() for the equivalent textual error message.</font></p>
|
|
<p><font><b>ErrorMsg<a name="errormsg"></a>()</b></font></p>
|
|
<p><font>Returns the last status or error message. The error message is reset after every
|
|
call to Execute().
|
|
</font></p><p>
|
|
<font>This can return a string even if
|
|
no error occurs. In general you do not need to call this function unless an
|
|
ADOdb function returns false on an error. </font></p>
|
|
<p><font>Note: If <b>debug</b> is enabled, the SQL error message is always displayed
|
|
when the <b>Execute</b> function is called.</font></p>
|
|
<p><font><b>ErrorNo<a name="errorno"></a>()</b></font></p>
|
|
<p><font>Returns the last error number. The error number is reset after every call to Execute().
|
|
If 0 is returned, no error occurred.
|
|
</font></p><p>
|
|
<font>Note that old versions of PHP (pre 4.0.6) do
|
|
not support error number for ODBC. In general you do not need to call this
|
|
function unless an ADOdb function returns false on an error.</font></p>
|
|
|
|
<p><font><b>SetFetchMode<a name="setfetchmode"></a>($mode)</b></font></p>
|
|
<p><font>Sets the current fetch mode for the connection and stores
|
|
it in $db->fetchMode. Legal modes are ADODB_FETCH_ASSOC and ADODB_FETCH_NUM.
|
|
For more info, see <a href="#adodb_fetch_mode">$ADODB_FETCH_MODE</a>.</font></p>
|
|
<p><font>Returns the previous fetch mode, which could be false
|
|
if SetFetchMode( ) has not been called before.</font></p>
|
|
<font>
|
|
</font><p><font><b>CreateSequence<a name="createseq"></a>($seqName = 'adodbseq',$startID=1)</b></font></p>
|
|
<p><font>Create a sequence. The next time GenID( ) is called, the value returned will
|
|
be $startID. Added in 2.60.
|
|
</font></p><p><font><b>DropSequence<a name="dropseq"></a>($seqName = 'adodbseq')</b></font></p>
|
|
<p><font>Delete a sequence. Added in 2.60.
|
|
</font></p><p><font><b>GenID<a name="genid"></a>($seqName = 'adodbseq',$startID=1)</b></font></p>
|
|
<p><font>Generate a sequence number . Works for interbase,
|
|
mysql, postgresql, oci8, oci8po, mssql, ODBC based (access,vfp,db2,etc) drivers
|
|
currently. Uses $seqName as the name of the sequence. GenID() will automatically
|
|
create the sequence for you if it does not exist (provided the userid has
|
|
permission to do so). Otherwise you will have to create the sequence yourself.
|
|
</font></p><p><font> If your database driver emulates sequences, the name of the table is the sequence
|
|
name. The table has one column, "id" which should be of type integer, or if
|
|
you need something larger - numeric(16).
|
|
</font></p><p><font> For ODBC and databases that do not support sequences natively (eg mssql, mysql),
|
|
we create a table for each sequence. If the sequence has not been defined
|
|
earlier, it is created with the starting value set in $startID.</font></p>
|
|
<p><font>Note that the mssql driver's GenID() before 1.90 used to generate 16 byte GUID's.</font></p>
|
|
<p><font><b>UpdateBlob<a name="updateblob"></a>($table,$column,$val,$where)</b></font></p>
|
|
<font>Allows you to store a blob (in $val) into $table into $column in a row at $where.
|
|
</font><p><font> Usage:
|
|
</font></p><p><font>
|
|
</font></p><pre><font> # for oracle<br> $conn->Execute('INSERT INTO blobtable (id, blobcol) VALUES (1, empty_blob())');<br> $conn->UpdateBlob('blobtable','blobcol',$blobvalue,'id=1');<br> <br> # non oracle databases<br> $conn->Execute('INSERT INTO blobtable (id, blobcol) VALUES (1, null)');<br> $conn->UpdateBlob('blobtable','blobcol',$blobvalue,'id=1');<br></font></pre>
|
|
<p><font> Returns true if succesful, false otherwise. Supported by MySQL, PostgreSQL,
|
|
Oci8, Oci8po and Interbase drivers. Other drivers might work, depending on
|
|
the state of development.</font></p>
|
|
<p><font>Note that when an Interbase blob is retrieved using SELECT, it still needs
|
|
to be decoded using $connection->DecodeBlob($blob); to derive the original
|
|
value in versions of PHP before 4.1.0.
|
|
</font></p><p><font>For PostgreSQL, you can store your blob using blob oid's or as a bytea field.
|
|
You can use bytea fields but not blob oid's currently with UpdateBlob( ).
|
|
Conversely UpdateBlobFile( ) supports oid's, but not bytea data.<br>
|
|
<br>
|
|
If you do not pass in an oid, then UpdateBlob() assumes that you are storing
|
|
in bytea fields.
|
|
</font></p><p><font><b>UpdateClob<a name="updateclob"></a>($table,$column,$val,$where)</b></font></p>
|
|
<font>Allows you to store a clob (in $val) into $table into $column in a row at $where.
|
|
Similar to UpdateBlob (see above), but for Character Large OBjects.
|
|
</font><p><font> Usage:
|
|
</font></p><pre><font> # for oracle<br> $conn->Execute('INSERT INTO clobtable (id, clobcol) VALUES (1, empty_clob())');<br> $conn->UpdateBlob('clobtable','clobcol',$clobvalue,'id=1');<br> <br> # non oracle databases<br> $conn->Execute('INSERT INTO clobtable (id, clobcol) VALUES (1, null)');<br> $conn->UpdateBlob('clobtable','clobcol',$clobvalue,'id=1');<br></font></pre>
|
|
<p><font><b>UpdateBlobFile<a name="updateblobfile"></a>($table,$column,$path,$where,$blobtype='BLOB')</b></font></p>
|
|
<p><font>Similar to UpdateBlob, except that we pass in a file path to where the blob
|
|
resides.
|
|
</font></p><p><font>For PostgreSQL, if you are using blob oid's, use this interface. This interface
|
|
does not support bytea fields.
|
|
</font></p><p><font>Returns true if successful, false otherwise.
|
|
</font></p><p><font><b>BlobEncode<a name="blobencode" id="blobencode"></a>($blob)</b>
|
|
</font></p><p><font>Some databases require blob's to be encoded manually before upload. Note if
|
|
you use UpdateBlob( ) or UpdateBlobFile( ) the conversion is done automatically
|
|
for you and you do not have to call this function. For PostgreSQL, currently,
|
|
BlobEncode() can only be used for bytea fields.
|
|
</font></p><p><font>Returns the encoded blob value.
|
|
</font></p><p><font>Note that there is a connection property called <em>blobEncodeType</em> which
|
|
has 3 legal values:
|
|
</font></p><p><font>false - no need to perform encoding or decoding.<br>
|
|
'I' - blob encoding required, and returned encoded blob is a numeric value
|
|
(no need to quote).<br>
|
|
'C' - blob encoding required, and returned encoded blob is a character value
|
|
(requires quoting).
|
|
</font></p><p><font>This is purely for documentation purposes, so that programs that accept multiple
|
|
database drivers know what is the right thing to do when processing blobs.
|
|
</font></p><p><font><strong>BlobDecode<a name="blobdecode"></a>($blob, $maxblobsize = false)</strong>
|
|
</font></p><p><font>Some databases require blob's to be decoded manually after doing a select statement.
|
|
If the database does not require decoding, then this function will return
|
|
the blob unchanged. Currently BlobDecode is only required for one database,
|
|
PostgreSQL, and only if you are using blob oid's (if you are using bytea fields,
|
|
we auto-decode for you).</font> The default maxblobsize is set in $connection->maxblobsize, which
|
|
is set to 256K in adodb 4.54. <p>
|
|
In ADOdb 4.54 and later, the blob is the return value. In earlier versions, the blob data is sent to stdout.</p><font>
|
|
</font></p><pre><font>$rs = $db->Execute("select bloboid from postgres_table where id=$key");<br>$blob = $db->BlobDecode( reset($rs->fields) );</font></pre>
|
|
<p><font><b>Replace<a name="replace"></a>($table, $arrFields, $keyCols,$autoQuote=false)</b></font></p>
|
|
<p><font>Try to update a record, and if the record is not found, an insert statement
|
|
is generated and executed. Returns 0 on failure, 1 if update statement worked,
|
|
2 if no record was found and the insert was executed successfully. This differs
|
|
from MySQL's replace which deletes the record and inserts a new record. This
|
|
also means you cannot update the primary key. The only exception to this is
|
|
Interbase and its derivitives, which uses delete and insert because of some
|
|
Interbase API limitations.
|
|
</font></p><p><font>The parameters are $table which is the table name, the $keyCols which is an
|
|
associative array where the keys are the field names, and keyCols is the name
|
|
of the primary key, or an array of field names if it is a compound key. If
|
|
$autoQuote is set to true, then Replace() will quote all values that are non-numeric;
|
|
auto-quoting will not quote nulls. Note that auto-quoting will not work if
|
|
you use SQL functions or operators.
|
|
</font></p><p><font>Examples:
|
|
</font></p><pre><font># single field primary key<br>$ret = $db->Replace('atable', <br> array('id'=>1000,'firstname'=>'Harun','lastname'=>'Al-Rashid'),<br> 'id',$autoquote = true); <br># generates UPDATE atable SET firstname='Harun',lastname='Al-Rashid' WHERE id=1000<br># or INSERT INTO atable (id,firstname,lastname) VALUES (1000,'Harun','Al-Rashid')<br><br># compound key<br>$ret = $db->Replace('atable2', <br> array('firstname'=>'Harun','lastname'=>'Al-Rashid', 'age' => 33, 'birthday' => 'null'),<br> array('lastname','firstname'),<br> $autoquote = true);<br><br># no auto-quoting<br>$ret = $db->Replace('atable2', <br> array('firstname'=>"'Harun'",'lastname'=>"'Al-Rashid'", 'age' => 'null'),<br> array('lastname','firstname')); <br></font></pre>
|
|
<p><font><b>GetUpdateSQL<a name="getupdatesql"></a>(&$rs, $arrFields, $forceUpdate=false,$magicq=false, $force=null)</b></font></p>
|
|
<p><font>Generate SQL to update a table given a recordset $rs, and the modified fields
|
|
of the array $arrFields (which must be an associative array holding the column
|
|
names and the new values) are compared with the current recordset. If $forceUpdate
|
|
is true, then we also generate the SQL even if $arrFields is identical to
|
|
$rs->fields. Requires the recordset to be associative. $magicq is used
|
|
to indicate whether magic quotes are enabled (see qstr()). The field names in the array
|
|
are case-insensitive.</font></p>
|
|
<font> </font><p><font>Since 4.52, we allow you to pass the $force type parameter, and this overrides the <a href="#ADODB_FORCE_TYPE">$ADODB_FORCE_TYPE</a>
|
|
global variable.
|
|
</font></p><p><font><b>GetInsertSQL<a name="getinsertsql"></a>(&$rs, $arrFields,$magicq=false,$force=false)</b></font></p>
|
|
<p><font>Generate SQL to insert into a table given a recordset $rs. Requires the query
|
|
to be associative. $magicq is used to indicate whether magic quotes are enabled
|
|
(for qstr()). The field names in the array are case-insensitive.</font></p>
|
|
<p>
|
|
<font> Since 2.42, you can pass a table name instead of a recordset into
|
|
GetInsertSQL (in $rs), and it will generate an insert statement for that table.
|
|
</font></p><p><font>Since 4.52, we allow you to pass the $force type parameter, and this overrides the <a href="#ADODB_FORCE_TYPE">$ADODB_FORCE_TYPE</a>
|
|
global variable.
|
|
</font></p><p><font><b>PageExecute<a name="pageexecute"></a>($sql, $nrows, $page, $inputarr=false)</b>
|
|
</font></p><p><font>Used for pagination of recordset. $page is 1-based. See <a href="#ex8">Example
|
|
8</a>.</font></p>
|
|
|
|
<p><font><b>CachePageExecute<a name="cachepageexecute"></a>($secs2cache,
|
|
$sql, $nrows, $page, $inputarr=false)</b> </font></p>
|
|
<p><font>Used for pagination of recordset. $page is 1-based. See
|
|
<a href="#ex8">Example 8</a>. Caching version of PageExecute.</font></p>
|
|
<font>
|
|
</font><p></p>
|
|
<p><font><b>Close<a name="close"></a>( )</b></font></p>
|
|
<p><font>Close the database connection. PHP4 proudly states that we no longer have to
|
|
clean up at the end of the connection because the reference counting mechanism
|
|
of PHP4 will automatically clean up for us.</font></p>
|
|
<font> </font><p><font><b>StartTrans<a name="starttrans"></a>( )</b></font></p>
|
|
<font> </font><p><font>Start a monitored transaction. As SQL statements are executed, ADOdb will monitor
|
|
for SQL errors, and if any are detected, when CompleteTrans() is called, we auto-rollback.
|
|
</font></p><p>
|
|
<font> </font></p><p><font> To understand why StartTrans() is superior to BeginTrans(),
|
|
let us examine a few ways of using BeginTrans().
|
|
The following is the wrong way to use transactions:
|
|
</font></p><pre><font>$DB->BeginTrans();<br>$DB->Execute("update table1 set val=$val1 where id=$id");<br>$DB->Execute("update table2 set val=$val2 where id=$id");<br>$DB->CommitTrans();<br></font></pre>
|
|
<p><font>because you perform no error checking. It is possible to update table1 and
|
|
for the update on table2 to fail. Here is a better way:
|
|
</font></p><pre><font>$DB->BeginTrans();<br>$ok = $DB->Execute("update table1 set val=$val1 where id=$id");<br>if ($ok) $ok = $DB->Execute("update table2 set val=$val2 where id=$id");<br>if ($ok) $DB->CommitTrans();<br>else $DB->RollbackTrans();<br></font></pre>
|
|
<p><font>Another way is (since ADOdb 2.0):
|
|
</font></p><pre><font>$DB->BeginTrans();<br>$ok = $DB->Execute("update table1 set val=$val1 where id=$id");<br>if ($ok) $ok = $DB->Execute("update table2 set val=$val2 where id=$id");<br>$DB->CommitTrans($ok);<br></font></pre>
|
|
<p><font> Now it is a headache monitoring $ok all over the place. StartTrans() is an
|
|
improvement because it monitors all SQL errors for you. This is particularly
|
|
useful if you are calling black-box functions in which SQL queries might be executed.
|
|
Also all BeginTrans, CommitTrans and RollbackTrans calls inside a StartTrans block
|
|
will be disabled, so even if the black box function does a commit, it will be ignored.
|
|
</font></p><pre><font>$DB->StartTrans();<br>CallBlackBox();<br>$DB->Execute("update table1 set val=$val1 where id=$id");<br>$DB->Execute("update table2 set val=$val2 where id=$id");<br>$DB->CompleteTrans($ok);<br></font></pre>
|
|
<p><font>Note that a StartTrans blocks are nestable, the inner blocks are ignored.
|
|
</font></p><p><font><b>CompleteTrans<a name="completetrans"></a>($autoComplete=true)</b></font></p>
|
|
<font> </font><p><font>Complete a transaction called with StartTrans(). This function monitors
|
|
for SQL errors, and will commit if no errors have occured, otherwise it will rollback.
|
|
Returns true on commit, false on rollback. If the parameter $autoComplete is true
|
|
monitor sql errors and commit and rollback as appropriate. Set $autoComplete to false
|
|
to force rollback even if no SQL error detected.
|
|
</font></p><p><font><b>FailTrans<a name="failtrans"></a>( )</b></font></p>
|
|
<font> </font><p><font>Fail a transaction started with StartTrans(). The rollback will only occur when
|
|
CompleteTrans() is called.
|
|
</font></p><p><font><b>HasFailedTrans<a name="hasfailedtrans"></a>( )</b></font></p>
|
|
<font> </font><p><font>Check whether smart transaction has failed,
|
|
eg. returns true if there was an error in SQL execution or FailTrans() was called.
|
|
If not within smart transaction, returns false.
|
|
</font></p><p><font><b>BeginTrans<a name="begintrans"></a>( )</b></font></p>
|
|
<p><font>Begin a transaction. Turns off autoCommit. Returns true if successful. Some
|
|
databases will always return false if transaction support is not available.
|
|
Any open transactions will be rolled back when the connection is closed. Among the
|
|
databases that support transactions are Oracle, PostgreSQL, Interbase, MSSQL, certain
|
|
versions of MySQL, DB2, Informix, Sybase, etc.</font></p>
|
|
<font> </font><p><font>Note that <a href="#starttrans">StartTrans()</a> and CompleteTrans() is a superior method of
|
|
handling transactions, available since ADOdb 3.40. For a explanation, see the <a href="#starttrans">StartTrans()</a> documentation.
|
|
|
|
</font></p><p><font>You can also use the ADOdb <a href="#errorhandling">error handler</a> to die
|
|
and rollback your transactions for you transparently. Some buggy database extensions
|
|
are known to commit all outstanding tranasactions, so you might want to explicitly
|
|
do a $DB->RollbackTrans() in your error handler for safety.
|
|
</font></p><h4><font>Detecting Transactions</font></h4>
|
|
<font> </font><p><font>Since ADOdb 2.50, you are able to detect when you are inside a transaction. Check
|
|
that $connection->transCnt > 0. This variable is incremented whenever BeginTrans() is called,
|
|
and decremented whenever RollbackTrans() or CommitTrans() is called.
|
|
</font></p><p><font><b>CommitTrans<a name="committrans"></a>($ok=true)</b></font></p>
|
|
<p><font>End a transaction successfully. Returns true if successful. If the database
|
|
does not support transactions, will return true also as data is always committed.
|
|
</font></p>
|
|
<p><font>If you pass the parameter $ok=false, the data is rolled back. See example in
|
|
BeginTrans().</font></p>
|
|
<p><font><b>RollbackTrans<a name="rollbacktrans"></a>( )</b></font></p>
|
|
<p><font>End a transaction, rollback all changes. Returns true if successful. If the
|
|
database does not support transactions, will return false as data is never rollbacked.
|
|
</font></p>
|
|
<font>
|
|
</font><p><font><b>GetAssoc<a name="getassoc1"></a>($sql,$inputarr=false,$force_array=false,$first2cols=false)</b></font></p>
|
|
<p><font>Returns an associative array for the given query $sql with optional bind parameters
|
|
in $inputarr. If the number of columns returned is greater to two, a 2-dimensional
|
|
array is returned, with the first column of the recordset becomes the keys
|
|
to the rest of the rows. If the columns is equal to two, a 1-dimensional array
|
|
is created, where the the keys directly map to the values (unless $force_array
|
|
is set to true, when an array is created for each value).
|
|
</font></p><p><font> Examples:<a name="getassocex"></a></font></p>
|
|
|
|
<p><font>We have the following data in a recordset:</font></p>
|
|
<p><font>row1: Apple, Fruit, Edible<br>
|
|
row2: Cactus, Plant, Inedible<br>
|
|
row3: Rose, Flower, Edible</font></p>
|
|
<p><font>GetAssoc will generate the following 2-dimensional associative
|
|
array:</font></p>
|
|
<p><font>Apple => array[Fruit, Edible]<br>
|
|
Cactus => array[Plant, Inedible]<br>
|
|
Rose => array[Flower,Edible]</font></p>
|
|
<p><font>If the dataset is:</font></p>
|
|
<p><font>row1: Apple, Fruit<br>
|
|
row2: Cactus, Plant<br>
|
|
row3: Rose, Flower </font></p>
|
|
<p><font>GetAssoc will generate the following 1-dimensional associative
|
|
array (with $force_array==false):</font></p>
|
|
<p><font>Apple => Fruit</font><br>
|
|
Cactus=>Plant<br>
|
|
Rose=>Flower </p>
|
|
<p><font>The function returns:</font></p>
|
|
<p><font>The associative array, or false if an error occurs.</font></p>
|
|
<font>
|
|
<p><b>CacheGetAssoc<a name="cachegetassoc"></a>([$secs2cache,] $sql,$inputarr=false,$force_array=false,$first2cols=false)</b></p>
|
|
</font>
|
|
<p><font>Caching version of <a href="#getassoc1">GetAssoc</a> function above.
|
|
</font></p><p><font><b>GetOne<a name="getone"></a>($sql,$inputarr=false)</b></font></p>
|
|
<p><font>Executes the SQL and returns the first field of the first row. The recordset
|
|
and remaining rows are discarded for you automatically. If an error occur, false
|
|
is returned.</font></p>
|
|
<p><font><b>GetRow<a name="getrow"></a>($sql,$inputarr=false)</b></font></p>
|
|
<p><font>Executes the SQL and returns the first row as an array. The recordset and remaining
|
|
rows are discarded for you automatically. If an error occurs, false is returned.</font></p>
|
|
<p><font><b>GetAll<a name="getall"></a>($sql)</b></font></p>
|
|
|
|
<p><font>Executes the SQL and returns the all the rows as a 2-dimensional
|
|
array. The recordset is discarded for you automatically. If an error occurs,
|
|
false is returned.</font></p>
|
|
<p><b>GetCol<a name="getcol"></a>($sql,$inputarr=false,$trim=false)</b></p>
|
|
|
|
<p><font>Executes the SQL and returns all elements of the first column as a
|
|
1-dimensional array. The recordset is discarded for you automatically. If an error occurs,
|
|
false is returned.</font></p>
|
|
<p><font><b>CacheGetOne<a name="cachegetone"></a>([$secs2cache,]
|
|
$sql,$inputarr=false), CacheGetRow<a name="cachegetrow"></a>([$secs2cache,] $sql,$inputarr=false), CacheGetAll<a name="cachegetall"></a>([$secs2cache,]
|
|
$sql,$inputarr=false), CacheGetCol<a name="cachegetcol"></a>([$secs2cache,]
|
|
$sql,$inputarr=false,$trim=false)</b></font></p>
|
|
<font>
|
|
<p>Similar to above Get* functions, except that the recordset is serialized and
|
|
cached in the $ADODB_CACHE_DIR directory for $secs2cache seconds. Good for speeding
|
|
up queries on rarely changing data. Note that the $secs2cache parameter is optional.
|
|
If omitted, we use the value in $connection->cacheSecs (default is 3600 seconds,
|
|
or 1 hour).</p>
|
|
<p><b>Prepare<a name="prepare"></a>($sql )</b></p>
|
|
</font>
|
|
<p><font>Prepares (compiles) an SQL query for repeated execution. Bind parameters
|
|
are denoted by ?, except for the oci8 driver, which uses the traditional Oracle :varname
|
|
convention.
|
|
</font></p>
|
|
<p><font>Returns an array containing the original sql statement
|
|
in the first array element; the remaining elements of the array are driver dependent.
|
|
If there is an error, or we are emulating Prepare( ), we return the original
|
|
$sql string. This is because all error-handling has been centralized in Execute(
|
|
).</font></p>
|
|
<p><font>Prepare( ) cannot be used with functions that use SQL
|
|
query rewriting techniques, e.g. PageExecute( ) and SelectLimit( ).</font></p>
|
|
<p>Example:</p>
|
|
<pre><font>$stmt = $DB->Prepare('insert into table (col1,col2) values (?,?)');<br>for ($i=0; $i < $max; $i++)<br></font> $DB-><font>Execute($stmt,array((string) rand(), $i));<br></font></pre>
|
|
<font>
|
|
</font><p><font>Also see InParameter(), OutParameter() and PrepareSP() below. Only supported internally by interbase,
|
|
oci8 and selected ODBC-based drivers, otherwise it is emulated. There is no
|
|
performance advantage to using Prepare() with emulation.
|
|
</font></p><p><font> Important: Due to limitations or bugs in PHP, if you are getting errors when
|
|
you using prepared queries, try setting $ADODB_COUNTRECS = false before preparing.
|
|
This behaviour has been observed with ODBC.
|
|
</font></p><p><font><b>IfNull<a name="ifnull"></a>($field, $nullReplacementValue)</b></font></p>
|
|
<p><font>Portable IFNULL function (NVL in Oracle). Returns a string that represents
|
|
the function that checks whether a $field is null for the given database, and
|
|
if null, change the value returned to $nullReplacementValue. Eg.</font></p>
|
|
<pre><font>$sql = <font color="#993300">'SELECT '</font>.$db->IfNull('name', <font color="#993300">"'- unknown -'"</font>).<font color="#993300"> ' FROM table'</font>;</font></pre>
|
|
|
|
<p><font><b>length<a name="length"></a></b></font></p>
|
|
<p><font>This is not a function, but a property. Some databases have "length" and others "len"
|
|
as the function to measure the length of a string. To use this property:
|
|
</font></p><pre><font> $sql = <font color="#993300">"SELECT "</font>.$db->length.<font color="#993300">"(field) from table"</font>;<br> $rs = $db->Execute($sql);<br></font></pre>
|
|
|
|
<p><font><b>random<a name="random"></a></b></font></p>
|
|
<p><font>This is not a function, but a property. This is a string that holds the sql to
|
|
generate a random number between 0.0 and 1.0 inclusive.
|
|
|
|
</font></p><p><font><b>substr<a name="substr"></a></b></font></p>
|
|
<p><font>This is not a function, but a property. Some databases have "substr" and others "substring"
|
|
as the function to retrieve a sub-string. To use this property:
|
|
</font></p><pre><font> $sql = <font color="#993300">"SELECT "</font>.$db->substr.<font color="#993300">"(field, $offset, $length) from table"</font>;<br> $rs = $db->Execute($sql);<br></font></pre>
|
|
<p><font>For all databases, the 1st parameter of <i>substr</i> is the field, the 2nd is the
|
|
offset (1-based) to the beginning of the sub-string, and the 3rd is the length of the sub-string.
|
|
|
|
|
|
</font></p><p><font><b>Param<a name="param"></a>($name)</b></font></p>
|
|
<p><font>Generates a bind placeholder portably. For most databases, the bind placeholder
|
|
is "?". However some databases use named bind parameters such as Oracle, eg
|
|
":somevar". This allows us to portably define an SQL statement with bind parameters:
|
|
</font></p><pre><font>$sql = <font color="#993300">'insert into table (col1,col2) values ('</font>.$DB->Param('a').<font color="#993300">','</font>.$DB->Param('b').<font color="#993300">')'</font>;<br><font color="#006600"># generates 'insert into table (col1,col2) values (?,?)'<br># or 'insert into table (col1,col2) values (:a,:b)</font>'<br>$stmt = $DB->Prepare($sql);<br>$stmt = $DB->Execute($stmt,array('one','two'));<br></font></pre>
|
|
<font> </font>
|
|
<p></p>
|
|
<p><font><b>PrepareSP</b><b><a name="preparesp"></a></b><b>($sql,
|
|
$cursor=false )</b></font></p>
|
|
<p><font>When calling stored procedures in mssql and oci8 (oracle),
|
|
and you might want to directly bind to parameters that return values, or
|
|
for special LOB handling. PrepareSP() allows you to do so. </font></p>
|
|
<p><font>Returns the same array or $sql string as Prepare( )
|
|
above. If you do not need to bind to return values, you should use Prepare(
|
|
) instead.</font></p>
|
|
<p><font>The 2nd parameter, $cursor is not used except with oci8.
|
|
Setting it to true will force OCINewCursor to be called; this is to support
|
|
output REF CURSORs. </font></p>
|
|
<p><font>For examples of usage of PrepareSP( ), see InParameter(
|
|
) below. </font></p>
|
|
<p><font>Note: in the mssql driver, preparing stored procedures
|
|
requires a special function call, mssql_init( ), which is called by this
|
|
function. PrepareSP( ) is available in all other drivers, and is emulated
|
|
by calling Prepare( ). </font></p>
|
|
<p><font><b> InParameter<a name="inparameter"></a>($stmt, $var,
|
|
$name, $maxLen = 4000, $type = false )</b></font></p>
|
|
<font>Binds a PHP variable as input to a stored procedure variable.
|
|
The parameter <i>$stmt</i> is the value returned by PrepareSP(), <i>$var</i> is
|
|
the PHP variable you want to bind, $name is the name of the stored procedure
|
|
variable. Optional is <i>$maxLen</i>, the maximum length of the data to bind,
|
|
and $type which is database dependant. Consult <a href="http://php.net/mssql_bind">mssql_bind</a> and <a href="http://php.net/ocibindbyname">ocibindbyname</a> docs
|
|
at php.net for more info on legal values for $type. </font>
|
|
<p>
|
|
<font>InParameter() is a wrapper function that calls Parameter()
|
|
with $isOutput=false. The advantage of this function is that it is self-documenting,
|
|
because the $isOutput parameter is no longer needed. Only for mssql and oci8
|
|
currently. </font></p>
|
|
<p><font>Here is an example using oci8: </font></p>
|
|
<pre><font><font color="green"># For oracle, Prepare and PrepareSP are identical</font>
|
|
$stmt = $db->PrepareSP(
|
|
<font color="#993300">"declare RETVAL integer; <br> begin<br> :RETVAL := </font><font color="#993300">SP_RUNSOMETHING</font><font color="#993300">(:myid,:group);<br> end;"</font>);<br>$db->InParameter($stmt,$id,'myid');<br>$db->InParameter($stmt,$group,'group',64);<br>$db->OutParameter($stmt,$ret,'RETVAL');<br>$db->Execute($stmt);<br></font></pre>
|
|
<p><font> The same example using mssql:</font></p>
|
|
<font>
|
|
</font><pre><font><font color="green"># @RETVAL = SP_RUNSOMETHING @myid,@group</font>
|
|
$stmt = $db->PrepareSP(<font color="#993333">'<font color="#993300">SP_RUNSOMETHING</font>'</font>); <br><font color="green"># note that the parameter name does not have @ in front!</font>
|
|
$db->InParameter($stmt,$id,'myid');
|
|
$db->InParameter($stmt,$group,'group',64);
|
|
<font color="green"># return value in mssql - RETVAL is hard-coded name</font> <br>$db->OutParameter($stmt,$ret,'RETVAL');<br>$db->Execute($stmt); </font></pre>
|
|
|
|
<p><font>Note that the only difference between the oci8 and mssql implementations is $sql.</font></p>
|
|
<p>
|
|
<font> If $type parameter is set to false, in mssql, $type will be dynamicly determined
|
|
based on the type of the PHP variable passed <font face="Courier New, Courier, mono">(string
|
|
=> SQLCHAR, boolean =>SQLINT1, integer =>SQLINT4 or float/double=>SQLFLT8)</font>.
|
|
</font></p><p><font>
|
|
In oci8, $type can be set to OCI_B_FILE (Binary-File), OCI_B_CFILE (Character-File),
|
|
OCI_B_CLOB (Character-LOB), OCI_B_BLOB (Binary-LOB) and OCI_B_ROWID (ROWID). To
|
|
pass in a null, use<font face="Courier New, Courier, mono"> $db->Parameter($stmt,
|
|
$null=null, 'param')</font>.
|
|
</font></p><p><font><b> OutParameter<a name="outparameter"></a>($stmt, $var, $name,
|
|
$maxLen = 4000, $type = false )</b></font></p>
|
|
<font> Binds a PHP variable as output from a stored procedure variable. The parameter <i>$stmt</i>
|
|
is the value returned by PrepareSP(), <i>$var</i> is the PHP variable you want to bind, <i>$name</i>
|
|
is the name of the stored procedure variable. Optional is <i>$maxLen</i>, the maximum length of the
|
|
data to bind, and <i>$type</i> which is database dependant.
|
|
</font><p>
|
|
<font> OutParameter() is a wrapper function that calls Parameter() with $isOutput=true.
|
|
The advantage of this function is that it is self-documenting, because
|
|
the $isOutput parameter is no longer needed. Only for mssql
|
|
and oci8 currently.
|
|
</font></p><p>
|
|
<font>For an example, see <a href="#inparameter">InParameter</a>.
|
|
|
|
</font></p><p><font><b> Parameter<a name="parameter"></a>($stmt, $var, $name, $isOutput=false,
|
|
$maxLen = 4000, $type = false )</b></font></p>
|
|
<p><font>Note: This function is deprecated, because of the new InParameter() and OutParameter() functions.
|
|
These are superior because they are self-documenting, unlike Parameter().
|
|
</font></p><p><font>Adds a bind parameter suitable for return values or special data handling (eg.
|
|
LOBs) after a statement has been prepared using PrepareSP(). Only for mssql
|
|
and oci8 currently. The parameters are:<br>
|
|
<br>
|
|
$<i><b>stmt</b></i> Statement returned by Prepare() or PrepareSP().<br>
|
|
$<i><b>var</b></i> PHP variable to bind to. Make sure you pre-initialize it!<br>
|
|
$<i><b>name</b></i> Name of stored procedure variable name to bind to.<br>
|
|
[$<i><b>isOutput</b></i>] Indicates direction of parameter 0/false=IN 1=OUT
|
|
2= IN/OUT. This is ignored in oci8 as this driver auto-detects the direction.<br>
|
|
[$<b>maxLen</b>] Maximum length of the parameter variable.<br>
|
|
[$<b>type</b>] Consult <a href="http://php.net/mssql_bind">mssql_bind</a> and
|
|
<a href="http://php.net/ocibindbyname">ocibindbyname</a> docs at php.net for
|
|
more info on legal values for type.</font></p>
|
|
<p><font>Lastly, in oci8, bind parameters can be reused without calling PrepareSP( )
|
|
or Parameters again. This is not possible with mssql. An oci8 example:</font></p>
|
|
<pre><font>$id = 0; $i = 0;<br>$stmt = $db->PrepareSP( <font color="#993300">"update table set val=:i where id=:id"</font>);<br>$db->Parameter($stmt,$id,'id');<br>$db->Parameter($stmt,$i, 'i');<br>for ($cnt=0; $cnt < 1000; $cnt++) {<br> $id = $cnt; <br> $i = $cnt * $cnt; <font color="green"># works with oci8!</font>
|
|
$db->Execute($stmt); <br>}</font></pre>
|
|
<p><font><b>Bind<a name="bind"></a>($stmt, $var, $size=4001, $type=false, $name=false)</b></font></p>
|
|
|
|
<p><font>This is a low-level function supported only by the oci8
|
|
driver. <b>Avoid using</b> unless you only want to support Oracle. The Parameter(
|
|
) function is the recommended way to go with bind variables.</font></p>
|
|
<p><font>Bind( ) allows you to use bind variables in your sql
|
|
statement. This binds a PHP variable to a name defined in an Oracle sql statement
|
|
that was previously prepared using Prepare(). Oracle named variables begin with
|
|
a colon, and ADOdb requires the named variables be called :0, :1, :2, :3, etc.
|
|
The first invocation of Bind() will match :0, the second invocation will match
|
|
:1, etc. Binding can provide 100% speedups for insert, select and update statements.
|
|
</font></p>
|
|
<p>The other variables, $size sets the buffer size for data storage, $type is
|
|
the optional descriptor type OCI_B_FILE (Binary-File), OCI_B_CFILE (Character-File),
|
|
OCI_B_CLOB (Character-LOB), OCI_B_BLOB (Binary-LOB) and OCI_B_ROWID (ROWID).
|
|
Lastly, instead of using the default :0, :1, etc names, you can define your
|
|
own bind-name using $name.
|
|
</p><p><font>The following example shows 3 bind variables being used:
|
|
p1, p2 and p3. These variables are bound to :0, :1 and :2.</font></p>
|
|
<pre>$stmt = $DB->Prepare("insert into table (col0, col1, col2) values (:0, :1, :2)");<br>$DB->Bind($stmt, $p1);<br>$DB->Bind($stmt, $p2);<br>$DB->Bind($stmt, $p3);<br>for ($i = 0; $i < $max; $i++) { <br> $p1 = ?; $p2 = ?; $p3 = ?;<br> $DB->Execute($stmt);<br>}</pre>
|
|
<p>You can also use named variables:</p>
|
|
<pre>$stmt = $DB->Prepare("insert into table (col0, col1, col2) values (:name0, :name1, :name2)");<br>$DB->Bind($stmt, $p1, "name0");<br>$DB->Bind($stmt, $p2, "name1");<br>$DB->Bind($stmt, $p3, "name2");<br>for ($i = 0; $i < $max; $i++) { <br> $p1 = ?; $p2 = ?; $p3 = ?;<br> $DB->Execute($stmt);<br>}</pre>
|
|
<p><b>LogSQL($enable=true)<a name="logsql"></a></b></p>
|
|
Call this method to install a SQL logging and timing function (using fnExecute).
|
|
Then all SQL statements are logged into an adodb_logsql table in a database. If
|
|
the adodb_logsql table does not exist, ADOdb will create the table if you have
|
|
the appropriate permissions. Returns the previous logging value (true for enabled,
|
|
false for disabled). Here are samples of the DDL for selected databases:
|
|
<p>
|
|
</p><pre> <b>mysql:</b>
|
|
CREATE TABLE adodb_logsql (
|
|
created datetime NOT NULL,
|
|
sql0 varchar(250) NOT NULL,
|
|
sql1 text NOT NULL,
|
|
params text NOT NULL,
|
|
tracer text NOT NULL,
|
|
timer decimal(16,6) NOT NULL
|
|
)
|
|
|
|
<b>postgres:</b>
|
|
CREATE TABLE adodb_logsql (
|
|
created timestamp NOT NULL,
|
|
sql0 varchar(250) NOT NULL,
|
|
sql1 text NOT NULL,
|
|
params text NOT NULL,
|
|
tracer text NOT NULL,
|
|
timer decimal(16,6) NOT NULL
|
|
)
|
|
|
|
<b>mssql:</b>
|
|
CREATE TABLE adodb_logsql (
|
|
created datetime NOT NULL,
|
|
sql0 varchar(250) NOT NULL,
|
|
sql1 varchar(4000) NOT NULL,
|
|
params varchar(3000) NOT NULL,
|
|
tracer varchar(500) NOT NULL,
|
|
timer decimal(16,6) NOT NULL
|
|
)
|
|
|
|
<b>oci8:</b>
|
|
CREATE TABLE adodb_logsql (
|
|
created date NOT NULL,
|
|
sql0 varchar(250) NOT NULL,
|
|
sql1 varchar(4000) NOT NULL,
|
|
params varchar(4000),
|
|
tracer varchar(4000),
|
|
timer decimal(16,6) NOT NULL
|
|
)
|
|
</pre>
|
|
Usage:
|
|
<pre> $conn->LogSQL(); // turn on logging<br> :<br> $conn->Execute(...);<br> :<br> $conn->LogSQL(false); // turn off logging<br> <br> # output summary of SQL logging results<br> $perf = NewPerfMonitor($conn);<br> echo $perf->SuspiciousSQL();<br> echo $perf->ExpensiveSQL();<br></pre>
|
|
<p>One limitation of logging is that rollback also prevents SQL from being logged.
|
|
</p><p>
|
|
If you prefer to use another name for the table used to store the SQL, you can override it by calling
|
|
adodb_perf::table($tablename), where $tablename is the new table name (you will still need to manually
|
|
create the table yourself). An example:
|
|
</p><pre> include('adodb.inc.php');<br> include('adodb-perf.inc.php');<br> adodb_perf::table('my_logsql_table');<br></pre>
|
|
Also see <a href="docs-perf.htm">Performance Monitor</a>.
|
|
<p><font><b>fnExecute and fnCacheExecute properties<a name="fnexecute" id="fnexecute"></a></b></font></p>
|
|
<p>These two properties allow you to define bottleneck functions for all sql statements
|
|
processed by ADOdb. This allows you to perform statistical analysis and query-rewriting
|
|
of your sql.
|
|
</p><p><b>Examples of fnExecute</b></p>
|
|
<p>Here is an example of using fnExecute, to count all cached queries and non-cached
|
|
queries, you can do this:</p>
|
|
<pre><font color="#006600"># $db is the connection object</font>
|
|
function CountExecs($db, $sql, $inputarray)
|
|
{
|
|
global $EXECS;
|
|
|
|
if (!is_array(inputarray)) $EXECS++;
|
|
<font color="#006600"># handle 2-dimensional input arrays</font>
|
|
else if (is_array(reset($inputarray))) $EXECS += sizeof($inputarray);
|
|
else $EXECS++;
|
|
}
|
|
|
|
<font color="#006600"># $db is the connection object</font>
|
|
function CountCachedExecs($db, $secs2cache, $sql, $inputarray)
|
|
{<br>global $CACHED; $CACHED++;<br>}<br><br>$db = NewADOConnection('mysql');<br>$db->Connect(...);<br>$db-><strong>fnExecute</strong> = 'CountExecs';<br>$db-><strong>fnCacheExecute</strong> = 'CountCachedExecs';<br> :<br> :<br><font color="#006600"># After many sql statements:</font>`<br>printf("<p>Total queries=%d; total cached=%d</p>",$EXECS+$CACHED, $CACHED);<br></pre>
|
|
<p>The fnExecute function is called before the sql is parsed and executed, so
|
|
you can perform a query rewrite. If you are passing in a prepared statement,
|
|
then $sql is an array (see <a href="#prepare">Prepare</a>). The fnCacheExecute
|
|
function is only called if the recordset returned was cached.<font>
|
|
The function parameters match the Execute and CacheExecute functions respectively,
|
|
except that $this (the connection object) is passed as the first parameter.</font></p>
|
|
<p>Since ADOdb 3.91, the behaviour of fnExecute varies depending on whether the
|
|
defined function returns a value. If it does not return a value, then the $sql
|
|
is executed as before. This is useful for query rewriting or counting sql queries.
|
|
</p><p> On the other hand, you might want to replace the Execute function with one
|
|
of your own design. If this is the case, then have your function return a value.
|
|
If a value is returned, that value is returned immediately, without any further
|
|
processing. This is used internally by ADOdb to implement LogSQL() functionality.
|
|
</p>
|
|
<p>
|
|
<hr>
|
|
<h3><font>ADOConnection Utility Functions</font></h3>
|
|
<p><font><b>BlankRecordSet<a name="blankrecordset"></a>([$queryid])</b></font></p>
|
|
<p><font>No longer available - removed since 1.99.</font></p>
|
|
<p><font><b>Concat<a name="concat"></a>($s1,$s2,....)</b></font></p>
|
|
<p><font>Generates the sql string used to concatenate $s1, $s2, etc together. Uses the
|
|
string in the concat_operator field to generate the concatenation. Override
|
|
this function if a concatenation operator is not used, eg. MySQL.</font></p>
|
|
<p><font>Returns the concatenated string.</font></p>
|
|
<p><font><b>DBDate<a name="dbdate"></a>($date)</b></font></p>
|
|
<p><font>Format the $<b>date</b> in the format the database accepts. This is used in
|
|
INSERT/UPDATE statements; for SELECT statements, use <a href="#sqldate">SQLDate</a>.
|
|
The $<b>date</b> parameter can be a Unix integer timestamp or an ISO format
|
|
Y-m-d. Uses the fmtDate field, which holds the format to use. If null or false
|
|
or '' is passed in, it will be converted to an SQL null.</font></p>
|
|
<p><font>Returns the date as a quoted string.</font></p>
|
|
<p><font><b>DBTimeStamp<a name="dbtimestamp"></a>($ts)</b></font></p>
|
|
<p><font>Format the timestamp $<b>ts</b> in the format the database accepts; this can
|
|
be a Unix integer timestamp or an ISO format Y-m-d H:i:s. Uses the fmtTimeStamp
|
|
field, which holds the format to use. If null or false or '' is passed in, it
|
|
will be converted to an SQL null.</font></p>
|
|
<p><font>Returns the timestamp as a quoted string.</font></p>
|
|
<p><font><b>qstr<a name="qstr"></a>($s,[$magic_quotes_enabled</b>=false]<b>)</b></font></p>
|
|
<p><font>Quotes a string to be sent to the database. The $<b>magic_quotes_enabled</b>
|
|
parameter may look funny, but the idea is if you are quoting a string extracted
|
|
from a POST/GET variable, then pass get_magic_quotes_gpc() as the second parameter.
|
|
This will ensure that the variable is not quoted twice, once by <i>qstr</i>
|
|
and once by the <i>magic_quotes_gpc</i>.</font></p>
|
|
<p><font>Eg.<font face="Courier New, Courier, mono"> $s = $db->qstr(HTTP_GET_VARS['name'],get_magic_quotes_gpc());</font></font></p>
|
|
<p><font>Returns the quoted string.</font></p>
|
|
<p><font><b>Quote<a name="quote"></a>($s)</b></font></p>
|
|
<p><font>Quotes the string $s, escaping the database specific quote character as appropriate.
|
|
Formerly checked magic quotes setting, but this was disabled since 3.31 for
|
|
compatibility with PEAR DB.
|
|
</font></p><p><font><b>Affected_Rows<a name="affected_rows"></a>( )</b></font></p>
|
|
<p><font>Returns the number of rows affected by a update or delete statement. Returns
|
|
false if function not supported.</font></p>
|
|
<p><font>Not supported by interbase/firebird currently. </font></p>
|
|
<p><font><b>Insert_ID<a name="inserted_id"></a>( )</b></font></p>
|
|
<p><font>Returns the last autonumbering ID inserted. Returns false if function not supported.
|
|
</font></p>
|
|
<p><font>Only supported by databases that support auto-increment or object id's, such
|
|
as PostgreSQL, MySQL and MS SQL Server currently. PostgreSQL returns the OID, which
|
|
can change on a database reload.</font></p>
|
|
<p><font><b>RowLock<a name="rowlock"></a>($table,$where)</b></font></p>
|
|
<p><font>Lock a table row for the duration of a transaction. For example to lock record $id in table1:
|
|
</font></p><pre><font> $DB->StartTrans();<br> $DB->RowLock("table1","rowid=$id");<br> $DB->Execute($sql1);<br> $DB->Execute($sql2);<br> $DB->CompleteTrans();<br></font></pre>
|
|
<p><font>Supported in db2, interbase, informix, mssql, oci8, postgres, sybase.
|
|
</font></p><p><font><b>MetaDatabases<a name="metadatabases"></a>()</b></font></p>
|
|
<p><font>Returns a list of databases available on the server as an array. You have to
|
|
connect to the server first. Only available for ODBC, MySQL and ADO.</font></p>
|
|
<p><font><b>MetaTables<a name="metatables"></a>($ttype = false, $showSchema = false,
|
|
$mask=false)</b></font></p>
|
|
<p><font>Returns an array of tables and views for the current database as an array.
|
|
The array should exclude system catalog tables if possible. To only show tables,
|
|
use $db->MetaTables('TABLES'). To show only views, use $db->MetaTables('VIEWS').
|
|
The $showSchema parameter currently works only for DB2, and when set to true,
|
|
will add the schema name to the table, eg. "SCHEMA.TABLE". </font></p>
|
|
<p><font>You can define a mask for matching. For example, setting $mask = 'TMP%' will
|
|
match all tables that begin with 'TMP'. Currently only mssql, oci8, odbc_mssql
|
|
and postgres* support $mask.
|
|
</font></p><p><font><b>MetaColumns<a name="metacolumns"></a>($table,$toupper=true)</b></font></p>
|
|
<p><font>Returns an array of ADOFieldObject's, one field object for every column of
|
|
$table. A field object is a class instance with (name, type, max_length) defined.
|
|
Currently Sybase does not recognise date types, and ADO cannot identify
|
|
the correct data type (so we default to varchar).
|
|
</font></p><p><font> The $toupper parameter determines whether we uppercase the table name
|
|
(required for some databases).
|
|
</font></p><p><font>For schema support, pass in the $table parameter, "$schema.$tablename". This is only
|
|
supported for selected databases.
|
|
</font></p><p><font><b>MetaColumnNames<a name="metacolumnames"></a>($table,$numericIndex=false)</b></font></p>
|
|
<p><font>Returns an array of column names for $table. Since ADOdb 4.22, this is an associative array, with the
|
|
keys in uppercase. Set $numericIndex=true if you want the old behaviour of numeric indexes (since 4.23).
|
|
</font></p><p>
|
|
<font>e.g. array('FIELD1' => 'Field1', 'FIELD2'=>'Field2')
|
|
</font></p><p>
|
|
</p><p><font><b>MetaPrimaryKeys<a name="metaprimarykeys"></a>($table,
|
|
$owner=false)</b></font>
|
|
</p>
|
|
<p><font>Returns an array containing column names that are the
|
|
primary keys of $table. Supported by mysql, odbc (including db2, odbc_mssql,
|
|
etc), mssql, postgres, interbase/firebird, oci8 currently. </font></p>
|
|
<p><font>Views (and some tables) have primary keys, but sometimes this information is not available from the
|
|
database. You can define a function ADODB_View_PrimaryKeys($databaseType, $database, $view, $owner) that
|
|
should return an array containing the fields that make up the primary key. If that function exists,
|
|
it will be called when MetaPrimaryKeys() cannot find a primary key for a table or view.
|
|
</font></p><pre><font>// In this example: dbtype = 'oci8', $db = 'mydb', $view = 'dataView', $owner = false <br>function ADODB_View_PrimaryKeys($dbtype,$db,$view,$owner)<br>{<br> switch(strtoupper($view)) {<br> case 'DATAVIEW': return array('DATAID');<br> default: return false;<br> }<br>}<br><br>$db = NewADOConnection('oci8');<br>$db->Connect('localhost','root','','mydb'); <br>$db->MetaPrimaryKeys('dataView');<br></font></pre>
|
|
<p><font><b>ServerInfo<a name="serverinfo" id="serverinfo"></a>($table)</b></font>
|
|
</p>
|
|
<p><font>Returns an array of containing two elements 'description'
|
|
and 'version'. The 'description' element contains the string description of
|
|
the database. The 'version' naturally holds the version number (which is also
|
|
a string).</font></p>
|
|
<p><font><b>MetaForeignKeys<a name="metaforeignkeys"></a>($table, $owner=false, $upper=false)</b>
|
|
</font></p><p><font>Returns an associate array of foreign keys, or false if not supported. For
|
|
example, if table employee has a foreign key where employee.deptkey points to
|
|
dept_table.deptid, and employee.posn=posn_table.postionid and employee.poscategory=posn_table.category,
|
|
then $conn->MetaForeignKeys('employee') will return
|
|
</font></p><pre><font> array(<br> 'dept_table' => array('deptkey=deptid'),<br> 'posn_table' => array('posn=positionid','poscategory=category')<br> )<br></font></pre>
|
|
<p><font>The optional schema or owner can be defined in $owner. If $upper is true, then
|
|
the table names (array keys) are upper-cased.
|
|
</font></p><hr>
|
|
<h2><font>ADORecordSet<a name="adorecordset"></a></font></h2>
|
|
<p><font>When an SQL statement successfully is executed by <font face="Courier New, Courier, mono">ADOConnection->Execute($sql),</font>an
|
|
ADORecordSet object is returned. This object contains a virtual cursor so we
|
|
can move from row to row, functions to obtain information about the columns
|
|
and column types, and helper functions to deal with formating the results to
|
|
show to the user.</font></p>
|
|
<h3><font>ADORecordSet Fields</font></h3>
|
|
<p><font><b>fields: </b>Array containing the current row. This is not associative, but
|
|
is an indexed array from 0 to columns-1. See also the function <b><a href="#fields">Fields</a></b>,
|
|
which behaves like an associative array.</font></p>
|
|
<p><font><b>dataProvider</b>: The underlying mechanism used to connect to the database.
|
|
Normally set to <b>native</b>, unless using <b>odbc</b> or <b>ado</b>.</font></p>
|
|
<p><font><b>blobSize</b>: Maximum size of a char, string or varchar object before it
|
|
is treated as a Blob (Blob's should be shown with textarea's). See the <a href="#metatype">MetaType</a>
|
|
function.</font></p>
|
|
<p><font><b>sql</b>: Holds the sql statement used to generate this record set.</font></p>
|
|
<p><font><b>canSeek</b>: Set to true if Move( ) function works.</font></p>
|
|
<p><font><b>EOF</b>: True if we have scrolled the cursor past the last record.</font></p>
|
|
<h3><font>ADORecordSet Functions</font></h3>
|
|
<p><font><b>ADORecordSet( )</b></font></p>
|
|
<p><font>Constructer. Normally you never call this function yourself.</font></p>
|
|
<p><font><b>GetAssoc<a name="getassoc"></a>([$force_array])</b></font></p>
|
|
<p><font>Generates an associative array from the recordset. Note that is this function
|
|
is also <a href="#getassoc1">available</a> in the connection object. More details
|
|
can be found there.</font></p>
|
|
<font> </font>
|
|
<p><font><b>GetArray<a name="getarray"></a>([$number_of_rows])</b></font></p>
|
|
<p><font>Generate a 2-dimensional array of records from the current
|
|
cursor position, indexed from 0 to $number_of_rows - 1. If $number_of_rows
|
|
is undefined, till EOF.</font></p>
|
|
<p><font><b>GetRows<a name="getrows"></a>([$number_of_rows])</b></font></p>
|
|
<font>Generate a 2-dimensional array of records from the current
|
|
cursor position. Synonym for GetArray() for compatibility with Microsoft ADO. </font>
|
|
<p><font> <b>GetMenu<a name="getmenu"></a>($name, [$default_str=''],
|
|
[$blank1stItem=true], [$multiple_select=false], [$size=0], [$moreAttr=''])</b></font></p>
|
|
<p><font>Generate a HTML menu (<select><option><option></select>).
|
|
The first column of the recordset (fields[0]) will hold the string to display
|
|
in the option tags. If the recordset has more than 1 column, the second column
|
|
(fields[1]) is the value to send back to the web server.. The menu will be
|
|
given the name $<i>name</i>. </font></p>
|
|
<p><font> If $<i>default_str</i> is defined, then if $<i>default_str</i> ==
|
|
fields[0], that field is selected. If $<i>blank1stItem</i> is true, the first
|
|
option is empty. You can also set the first option strings by setting $blank1stItem
|
|
= "$value:$text".</font></p>
|
|
<p><font>$<i>Default_str</i> can be array for a multiple select
|
|
listbox.</font></p>
|
|
<p><font>To get a listbox, set the $<i>size</i> to a non-zero
|
|
value (or pass $default_str as an array). If $<i>multiple_select</i> is true
|
|
then a listbox will be generated with $<i>size</i> items (or if $size==0,
|
|
then 5 items) visible, and we will return an array to a server. Lastly use
|
|
$<i>moreAttr </i> to add additional attributes such as javascript or styles. </font></p>
|
|
<p><font>Menu Example 1: <code>GetMenu('menu1','A',true)</code> will
|
|
generate a menu:
|
|
<select name="menu1">
|
|
<option> </option>
|
|
<option value="1" selected="selected">A </option>
|
|
<option value="2">B </option>
|
|
<option value="3">C </option>
|
|
</select>
|
|
for the data (A,1), (B,2), (C,3). Also see <a href="#ex5">example 5</a>.</font></p>
|
|
<p><font>Menu Example 2: For the same data, <code>GetMenu('menu1',array('A','B'),false)</code> will
|
|
generate a menu with both A and B selected: <br>
|
|
<select name="menu1" multiple="multiple" size="3">
|
|
<option value="1" selected="selected">A </option>
|
|
<option value="2" selected="selected">B </option>
|
|
<option value="3">C </option>
|
|
</select>
|
|
</font></p>
|
|
<p><font> <b>GetMenu2<a name="getmenu2"></a>($name, [$default_str=''],
|
|
[$blank1stItem=true], [$multiple_select=false], [$size=0], [$moreAttr=''])</b></font></p>
|
|
<p><font>This is nearly identical to GetMenu, except that the
|
|
$<i>default_str</i> is matched to fields[1] (the option values).</font></p>
|
|
<p><font>Menu Example 3: Given the data in menu example 2, <code>GetMenu2('menu1',array('1','2'),false)</code> will
|
|
generate a menu with both A and B selected in menu example 2, but this time
|
|
the selection is based on the 2nd column, which holds the values to return
|
|
to the Web server. </font></p>
|
|
<p><font><b>UserDate<a name="userdate"></a>($str, [$fmt])</b></font></p>
|
|
<p><font>Converts the date string $<i>str</i> to another format.
|
|
The date format is Y-m-d, or Unix timestamp format. The default $<i>fmt</i> is
|
|
Y-m-d.</font></p>
|
|
<p><font><b>UserTimeStamp<a name="usertimestamp"></a>($str, [$fmt])</b></font></p>
|
|
<p><font>Converts the timestamp string $<b>str</b> to another
|
|
format. The timestamp format is Y-m-d H:i:s, as in '2002-02-28 23:00:12',
|
|
or Unix timestamp format. UserTimeStamp calls UnixTimeStamp to parse $<i>str</i>,
|
|
and $<i>fmt</i> defaults to Y-m-d H:i:s if not defined. </font></p>
|
|
<p><font><b>UnixDate<a name="unixdate"></a>($str)</b></font></p>
|
|
<p><font>Parses the date string $<b>str</b> and returns it in
|
|
unix mktime format (eg. a number indicating the seconds after January 1st,
|
|
1970). Expects the date to be in Y-m-d H:i:s format, except for Sybase and
|
|
Microsoft SQL Server, where M d Y is also accepted (the 3 letter month strings
|
|
are controlled by a global array, which might need localisation).</font></p>
|
|
<p><font>This function is available in both ADORecordSet and
|
|
ADOConnection since 1.91.</font></p>
|
|
<p><font><b>UnixTimeStamp<a name="unixtimestamp"></a>($str)</b></font></p>
|
|
<p><font>Parses the timestamp string $<b>str</b> and returns
|
|
it in unix mktime format (eg. a number indicating the seconds after January
|
|
1st, 1970). Expects the date to be in "Y-m-d, H:i:s" (1970-12-24, 00:00:00)
|
|
or "Y-m-d H:i:s" (1970-12-24 00:00:00) or "YmdHis" (19701225000000) format,
|
|
except for Sybase and Microsoft SQL Server, where "M d Y h:i:sA" (Dec 25
|
|
1970 00:00:00AM) is also accepted (the 3 letter month strings are controlled
|
|
by a global array, which might need localisation).</font></p>
|
|
<font>
|
|
</font><p><font>This function is available in both ADORecordSet
|
|
and ADOConnection since 1.91. </font></p>
|
|
<p><font><b>OffsetDate<a name="offsetdate"></a>($dayFraction,
|
|
$basedate=false)</b></font></p>
|
|
<p><font>Returns a string with the native SQL functions to calculate
|
|
future and past dates based on $basedate in a portable fashion. If $basedate
|
|
is not defined, then the current date (at 12 midnight) is used. Returns the
|
|
SQL string that performs the calculation when passed to Execute(). </font></p>
|
|
<p><font>For example, in Oracle, to find the date and time that
|
|
is 2.5 days from today, you can use:</font></p>
|
|
<pre><font># get date one week from now<br>$fld = $conn->OffsetDate(7); // returns "(trunc(sysdate)+7")</font></pre>
|
|
<pre><font># get date and time that is 60 hours from current date and time<br>$fld = $conn->OffsetDate(2.5, $conn->sysTimeStamp); // returns "(sysdate+2.5)"
|
|
|
|
$conn->Execute("UPDATE TABLE SET dodate=$fld WHERE ID=$id");</font></pre>
|
|
<p><font> This function is available for mysql, mssql, oracle, oci8 and postgresql drivers
|
|
since 2.13. It might work with other drivers provided they allow performing
|
|
numeric day arithmetic on dates.</font></p>
|
|
<font> </font>
|
|
<p><font><b>SQLDate<a name="sqldate"></a>($dateFormat, $basedate=false)</b></font></p>
|
|
<font>Returns a string which contains the native SQL functions
|
|
to format a date or date column $basedate. This is used in SELECT statements.
|
|
For INSERT/UPDATE statements, use <a href="#dbdate">DBDate</a>. It uses a case-sensitive
|
|
$dateFormat, which supports: </font>
|
|
<pre><font> Y: 4-digit Year<br> Q: Quarter (1-4)<br> M: Month (Jan-Dec)<br> m: Month (01-12)<br> d: Day (01-31)<br> H: Hour (00-23)<br> h: Hour (1-12)<br> i: Minute (00-59)<br> s: Second (00-60)<br> A: AM/PM indicator</font></pre>
|
|
<p><font>All other characters are treated as strings. You can
|
|
also use \ to escape characters. Available on selected databases, including
|
|
mysql, postgresql, mssql, oci8 and DB2. </font></p>
|
|
<p><font>This is useful in writing portable sql statements that
|
|
GROUP BY on dates. For example to display total cost of goods sold broken
|
|
by quarter (dates are stored in a field called postdate): </font></p>
|
|
<pre><font> $sqlfn = $db->SQLDate('Y-\QQ','postdate'); # get sql that formats postdate to output 2002-Q1<br> $sql = "SELECT $sqlfn,SUM(cogs) FROM table GROUP BY $sqlfn ORDER BY 1 desc";<br> </font></pre>
|
|
<p><font><b>MoveNext<a name="movenext"></a>( )</b></font></p>
|
|
<p><font>Move the internal cursor to the next row. The <i>$this->fields</i> array
|
|
is automatically updated. Returns false if unable to do so (normally because
|
|
EOF has been reached), otherwise true. </font></p>
|
|
<p><font> If EOF is reached, then the $this->fields array
|
|
is set to false (this was only implemented consistently in ADOdb 3.30). For
|
|
the pre-3.30 behaviour of $this->fields (at EOF), set the global variable
|
|
$ADODB_COMPAT_FETCH = true.</font></p>
|
|
<p><font>Example:</font></p>
|
|
<pre><font>$rs = $db->Execute($sql);<br>if ($rs) <br> while (!$rs->EOF) {<br> ProcessArray($rs->fields); <br> $rs->MoveNext();<br> } </font></pre>
|
|
<p><font><b>Move<a name="move"></a>($to)</b></font></p>
|
|
<p><font>Moves the internal cursor to a specific row $<b>to</b>.
|
|
Rows are zero-based eg. 0 is the first row. The <b>fields</b> array is automatically
|
|
updated. For databases that do not support scrolling internally, ADOdb will
|
|
simulate forward scrolling. Some databases do not support backward scrolling.
|
|
If the $<b>to</b> position is after the EOF, $<b>to</b> will move to the
|
|
end of the RecordSet for most databases. Some obscure databases using odbc
|
|
might not behave this way.</font></p>
|
|
<p><font>Note: This function uses <i>absolute positioning</i>,
|
|
unlike Microsoft's ADO.</font></p>
|
|
<p><font>Returns true or false. If false, the internal cursor
|
|
is not moved in most implementations, so AbsolutePosition( ) will return
|
|
the last cursor position before the Move( ). </font></p>
|
|
<p><font><b>MoveFirst<a name="movefirst"></a>()</b></font></p>
|
|
<p><font>Internally calls Move(0). Note that some databases do
|
|
not support this function.</font></p>
|
|
<p><font><b>MoveLast<a name="movelast"></a>()</b></font></p>
|
|
<p><font>Internally calls Move(RecordCount()-1). Note that some
|
|
databases do not support this function.</font></p>
|
|
<p><font><b>GetRowAssoc</b><a name="getrowassoc"></a>($toUpper=true)</font></p>
|
|
<p><font>Returns an associative array containing the current
|
|
row. The keys to the array are the column names. The column names are upper-cased
|
|
for easy access. To get the next row, you will still need to call MoveNext(). </font></p>
|
|
<p><font>For example:<br>
|
|
Array ( [ID] => 1 [FIRSTNAME] => Caroline [LASTNAME] => Miranda [CREATED]
|
|
=> 2001-07-05 ) </font></p>
|
|
<p><font>Note: do not use GetRowAssoc() with $ADODB_FETCH_MODE
|
|
= ADODB_FETCH_ASSOC. Because they have the same functionality, they will
|
|
interfere with each other.</font></p>
|
|
<font>
|
|
</font><p><font><b>AbsolutePage<a name="absolutepage"></a>($page=-1) </b></font></p>
|
|
<p><font>Returns the current page. Requires PageExecute()/CachePageExecute() to be called.
|
|
See <a href="#ex8">Example 8</a>.</font></p>
|
|
<font>
|
|
<p><b>AtFirstPage<a name="atfirstpage">($status='')</a></b></p>
|
|
<p>Returns true if at first page (1-based). Requires PageExecute()/CachePageExecute()
|
|
to be called. See <a href="#ex8">Example 8</a>.</p>
|
|
<p><b>AtLastPage<a name="atlastpage">($status='')</a></b></p>
|
|
<p>Returns true if at last page (1-based). Requires PageExecute()/CachePageExecute()
|
|
to be called. See <a href="#ex8">Example 8</a>.</p>
|
|
<p><b>Fields</b><a name="fields"></a>(<b>$colname</b>)</p>
|
|
<p>Returns the value of the associated column $<b>colname</b> for the current
|
|
row. The column name is case-insensitive.</p>
|
|
<p>This is a convenience function. For higher performance, use <a href="#adodb_fetch_mode">$ADODB_FETCH_MODE</a>. </p>
|
|
<p><b>FetchRow</b><a name="fetchrow"></a>()</p>
|
|
</font><p><font>Returns array containing current row, or false
|
|
if EOF. FetchRow( ) internally moves to the next record after returning the
|
|
current row. </font></p>
|
|
<p><font>Warning: Do not mix using FetchRow() with MoveNext().</font></p>
|
|
<p><font>Usage:</font></p>
|
|
<pre><font>$rs = $db->Execute($sql);<br>if ($rs)<br> while ($arr = $rs->FetchRow()) {<br> # process $arr <br> }</font></pre>
|
|
<p><font><b>FetchInto</b><a name="fetchinto"></a>(<b>&$array</b>)</font></p>
|
|
<p><font> Sets $array to the current row. Returns PEAR_Error
|
|
object if EOF, 1 if ok (DB_OK constant). If PEAR is undefined, false is returned
|
|
when EOF. FetchInto( ) internally moves to the next record after returning
|
|
the current row. </font></p>
|
|
<p><font> FetchRow() is easier to use. See above.</font></p>
|
|
<font> </font>
|
|
<p><font><b>FetchField<a name="fetchfield"></a>($column_number)</b></font></p>
|
|
<p><font>Returns an object containing the <b>name</b>, <b>type</b> and <b>max_length</b> of
|
|
the associated field. If the max_length cannot be determined reliably, it
|
|
will be set to -1. The column numbers are zero-based. See <a href="#ex2">example
|
|
2.</a></font></p>
|
|
<p><font><b>FieldCount<a name="fieldcount"></a>( )</b></font></p>
|
|
<p><font>Returns the number of fields (columns) in the record
|
|
set.</font></p>
|
|
<p><font><b>RecordCount<a name="recordcount"></a>( )</b></font></p>
|
|
<p><font>Returns the number of rows in the record set. If the
|
|
number of records returned cannot be determined from the database driver
|
|
API, we will buffer all rows and return a count of the rows after all the
|
|
records have been retrieved. This buffering can be disabled (for performance
|
|
reasons) by setting the global variable $ADODB_COUNTRECS = false. When disabled,
|
|
RecordCount( ) will return -1 for certain databases. See the supported databases
|
|
list above for more details. </font></p>
|
|
<p><font> RowCount is a synonym for RecordCount.</font></p>
|
|
<p><font><b>PO_RecordCount<a name="po_recordcount"></a>($table,
|
|
$where)</b></font></p>
|
|
<p><font>Returns the number of rows in the record set. If the
|
|
database does not support this, it will perform a SELECT COUNT(*) on the
|
|
table $table, with the given $where condition to return an estimate of the
|
|
recordset size.</font></p>
|
|
<p><font>$numrows = $rs->PO_RecordCount("articles_table", "group=$group");</font></p>
|
|
<font><b> NextRecordSet<a name="nextrecordset" id="nextrecordset"></a>()</b> </font>
|
|
<p><font>For databases that allow multiple recordsets to be returned
|
|
in one query, this function allows you to switch to the next recordset. Currently
|
|
only supported by mssql driver.</font></p>
|
|
<pre><font>$rs = $db->Execute('execute return_multiple_rs');<br>$arr1 = $rs->GetArray();<br>$rs->NextRecordSet();<br>$arr2 = $rs->GetArray();</font></pre>
|
|
<p><font><b>FetchObject<a name="fetchobject"></a>($toupper=true)</b></font></p>
|
|
<p><font>Returns the current row as an object. If you set $toupper
|
|
to true, then the object fields are set to upper-case. Note: The newer FetchNextObject()
|
|
is the recommended way of accessing rows as objects. See below.</font></p>
|
|
<p><font><b>FetchNextObject<a name="fetchnextobject"></a>($toupper=true)</b></font></p>
|
|
<p><font>Gets the current row as an object and moves to the next
|
|
row automatically. Returns false if at end-of-file. If you set $toupper to
|
|
true, then the object fields are set to upper-case.</font></p>
|
|
<pre><font>$rs = $db->Execute('select firstname,lastname from table');<br>if ($rs) {<br> while ($o = $rs->FetchNextObject()) {<br> print "$o->FIRSTNAME, $o->LASTNAME<BR>";<br> }<br>}<br></font></pre>
|
|
<p><font>There is some trade-off in speed in using FetchNextObject().
|
|
If performance is important, you should access rows with the <code>fields[]</code> array. <b>FetchObj<a name="fetchobj" id="fetchobj"></a>()</b> </font></p>
|
|
<p><font>Returns the current record as an object. Fields are
|
|
not upper-cased, unlike FetchObject.
|
|
</font></p>
|
|
<p><font><b>FetchNextObj<a name="fetchnextobj" id="fetchnextobj"></a>()</b> </font></p>
|
|
<p><font>Returns the current record as an object and moves to
|
|
the next record. If EOF, false is returned. Fields are not upper-cased, unlike
|
|
FetctNextObject. </font></p>
|
|
<font>
|
|
<p><b>CurrentRow<a name="currentrow"></a>( )</b></p>
|
|
<p>Returns the current row of the record set. 0 is the first row.</p>
|
|
<p><b>AbsolutePosition<a name="abspos"></a>( )</b></p>
|
|
<p>Synonym for <b>CurrentRow</b> for compatibility with ADO. Returns the current
|
|
row of the record set. 0 is the first row.</p>
|
|
<p><b>MetaType<a name="metatype"></a>($nativeDBType[,$field_max_length],[$fieldobj])</b></p>
|
|
<p>Determine what <i>generic</i> meta type a database field type is given its
|
|
native type $<b>nativeDBType</b> as a string and the length of the field $<b>field_max_length</b>.
|
|
Note that field_max_length can be -1 if it is not known. The field object returned
|
|
by FetchField() can be passed in $<b>fieldobj</b> or as the 1st parameter <b>$nativeDBType</b>.
|
|
This is useful for databases such as <i>mysql</i> which has additional properties
|
|
in the field object such as <i>primary_key</i>. </p>
|
|
<p>Uses the field <b>blobSize</b> and compares it with $<b>field_max_length</b> to
|
|
determine whether the character field is actually a blob.</p>
|
|
For example, $db->MetaType('char') will return 'C'.
|
|
<p>Returns:</p>
|
|
<ul>
|
|
<li><b>C</b>: Character fields that should be shown in a <input type="text"> tag. </li>
|
|
<li><b>X</b>: Clob (character large objects), or large text fields that should
|
|
be shown in a <textarea></li>
|
|
<li><b>D</b>: Date field</li>
|
|
<li><b>T</b>: Timestamp field</li>
|
|
<li><b>L</b>: Logical field (boolean or bit-field)</li>
|
|
<li><b>N</b>: Numeric field. Includes decimal, numeric, floating point, and
|
|
real. </li>
|
|
<li><b>I</b>: Integer field. </li>
|
|
<li><b>R</b>: Counter or Autoincrement field. Must be numeric.</li>
|
|
<li><b>B</b>: Blob, or binary large objects. </li>
|
|
</ul>
|
|
</font><p><font> Since ADOdb 3.0, MetaType accepts $fieldobj
|
|
as the first parameter, instead of $nativeDBType. </font></p>
|
|
<font> </font>
|
|
<p><font><b>Close( )<a name="rsclose"></a></b></font></p>
|
|
<p><font>Closes the recordset, cleaning all memory and resources
|
|
associated with the recordset. </font></p>
|
|
<p>
|
|
<font>If memory management is not an issue, you do not need to
|
|
call this function as recordsets are closed for you by PHP at the end of the
|
|
script. SQL statements such as INSERT/UPDATE/DELETE do not really return a recordset,
|
|
so you do not have to call Close() for such SQL statements.</font></p>
|
|
<hr>
|
|
<h3><font>function rs2html<a name="rs2html"></a>($adorecordset,[$tableheader_attributes],
|
|
[$col_titles])</font></h3>
|
|
<p><font>This is a standalone function (rs2html = recordset to
|
|
html) that is similar to PHP's <i>odbc_result_all</i> function, it prints
|
|
a ADORecordSet, $<b>adorecordset</b> as a HTML table. $<b>tableheader_attributes</b> allow
|
|
you to control the table <i>cellpadding</i>, <i>cellspacing</i> and <i>border</i> attributes.
|
|
Lastly you can replace the database column names with your own column titles
|
|
with the array $<b>col_titles</b>. This is designed more as a quick debugging
|
|
mechanism, not a production table recordset viewer.</font></p>
|
|
<p><font>You will need to include the file <i>tohtml.inc.php</i>.</font></p>
|
|
<p><font>Example of rs2html:<b><font color="#336600"><a name="exrs2html"></a></font></b></font></p>
|
|
<pre><font><b><font color="#336600"><?<br>include('tohtml.inc.php')</font></b>; # load code common to ADOdb <br><b>include</b>('adodb.inc.php'); # load code common to ADOdb <br>$<font color="#663300">conn</font> = &ADONewConnection('mysql'); # create a connection <br>$<font color="#663300">conn</font>->PConnect('localhost','userid','','agora');# connect to MySQL, agora db<br>$<font color="#663300">sql</font> = 'select CustomerName, CustomerID from customers'; <br>$<font color="#663300">rs</font> = $<font color="#663300">conn</font>->Execute($sql); <br><font color="#336600"><b>rs2html</b></font><b>($<font color="#663300">rs</font>,'<i>border=2 cellpadding=3</i>',array('<i>Customer Name','Customer ID</i>'));<br>?></b></font></pre>
|
|
<hr>
|
|
<h3><font>Differences between this ADOdb library and Microsoft
|
|
ADO<a name="adodiff"></a></font></h3>
|
|
<ol>
|
|
<font>
|
|
<li>ADOdb only supports recordsets created by a connection object. Recordsets
|
|
cannot be created independently.</li>
|
|
<li>ADO properties are implemented as functions in ADOdb. This makes it easier
|
|
to implement any enhanced ADO functionality in the future.</li>
|
|
<li>ADOdb's <font face="Courier New, Courier, mono">ADORecordSet->Move()</font> uses
|
|
absolute positioning, not relative. Bookmarks are not supported.</li>
|
|
<li><font face="Courier New, Courier, mono">ADORecordSet->AbsolutePosition() </font>cannot
|
|
be used to move the record cursor.</li>
|
|
<li>ADO Parameter objects are not supported. Instead we have the ADOConnection::<a href="#parameter">Parameter</a>(
|
|
) function, which provides a simpler interface for calling preparing parameters
|
|
and calling stored procedures.</li>
|
|
<li>Recordset properties for paging records are available, but implemented as
|
|
in <a href="#ex8">Example 8</a>.</li>
|
|
</font></ol>
|
|
<hr>
|
|
<h1><font>Database Driver Guide<a name="driverguide"></a></font></h1>
|
|
<p><font>This describes how to create a class to connect to a
|
|
new database. To ensure there is no duplication of work, kindly email me
|
|
at jlim#natsoft.com.my if you decide to create such a class.</font></p>
|
|
<p><font>First decide on a name in lower case to call the database
|
|
type. Let's say we call it xbase. </font></p>
|
|
<p><font>Then we need to create two classes ADODB_xbase and ADORecordSet_xbase
|
|
in the file adodb-xbase.inc.php.</font></p>
|
|
<p><font>The simplest form of database driver is an adaptation
|
|
of an existing ODBC driver. Then we just need to create the class <i>ADODB_xbase
|
|
extends ADODB_odbc</i> to support the new <b>date</b> and <b>timestamp</b> formats,
|
|
the <b>concatenation</b> operator used, <b>true</b> and <b>false</b>. For
|
|
the<i> ADORecordSet_xbase extends ADORecordSet_odbc </i>we need to change
|
|
the <b>MetaType</b> function. See<b> adodb-vfp.inc.php</b> as an example.</font></p>
|
|
<p><font>More complicated is a totally new database driver that
|
|
connects to a new PHP extension. Then you will need to implement several
|
|
functions. Fortunately, you do not have to modify most of the complex code.
|
|
You only need to override a few stub functions. See <b>adodb-mysql.inc.php</b> for
|
|
example.</font></p>
|
|
<p><font>The default date format of ADOdb internally is YYYY-MM-DD
|
|
(Ansi-92). All dates should be converted to that format when passing to an
|
|
ADOdb date function. See Oracle for an example how we use ALTER SESSION to
|
|
change the default date format in _pconnect _connect.</font></p>
|
|
<p><font><b>ADOConnection Functions to Override</b></font></p>
|
|
<p><font>Defining a constructor for your ADOConnection derived
|
|
function is optional. There is no need to call the base class constructor.</font></p>
|
|
<p><font>_<b>connect</b>: Low level implementation of Connect.
|
|
Returns true or false. Should set the _<b>connectionID</b>.</font></p>
|
|
<p><font>_<b>pconnect:</b> Low level implemention of PConnect.
|
|
Returns true or false. Should set the _<b>connectionID</b>.</font></p>
|
|
<p><font>_<b>query</b>: Execute a query. Returns the queryID,
|
|
or false.</font></p>
|
|
<p><font>_<b>close: </b>Close the connection -- PHP should clean
|
|
up all recordsets. </font></p>
|
|
<p><font><b>ErrorMsg</b>: Stores the error message in the private
|
|
variable _errorMsg. </font></p>
|
|
<p><font><b>ADOConnection Fields to Set</b></font></p>
|
|
<p><font>_<b>bindInputArray</b>: Set to true if binding of parameters
|
|
for SQL inserts and updates is allowed using ?, eg. as with ODBC.</font></p>
|
|
<p><font><b>fmtDate</b></font></p>
|
|
<p><font><b>fmtTimeStamp</b></font></p>
|
|
<p><font><b>true</b></font></p>
|
|
<p><font><b>false</b></font></p>
|
|
<p><font><b>concat_operator</b></font></p>
|
|
<p><font><b>replaceQuote</b></font></p>
|
|
<p><font><b>hasLimit</b> support SELECT * FROM TABLE LIMIT 10
|
|
of MySQL.</font></p>
|
|
<p><font><b>hasTop</b> support Microsoft style SELECT TOP 10
|
|
* FROM TABLE.</font></p>
|
|
<p><font><b>ADORecordSet Functions to Override</b></font></p>
|
|
<p><font>You will need to define a constructor for your ADORecordSet
|
|
derived class that calls the parent class constructor.</font></p>
|
|
<p><font><b>FetchField: </b> as documented above in ADORecordSet</font></p>
|
|
<p><font>_<b>initrs</b>: low level initialization of the recordset:
|
|
setup the _<b>numOfRows</b> and _<b>numOfFields</b> fields -- called by the
|
|
constructor.</font></p>
|
|
<p><font>_<b>seek</b>: seek to a particular row. Do not load
|
|
the data into the fields array. This is done by _fetch. Returns true or false.
|
|
Note that some implementations such as Interbase do not support seek. Set
|
|
canSeek to false.</font></p>
|
|
<p><font>_<b>fetch</b>: fetch a row using the database extension
|
|
function and then move to the next row. Sets the <b>fields</b> array. If
|
|
the parameter $ignore_fields is true then there is no need to populate the <b>fields</b> array,
|
|
just move to the next row. then Returns true or false.</font></p>
|
|
<p><font>_<b>close</b>: close the recordset</font></p>
|
|
<p><font><b>Fields</b>: If the array row returned by the PHP
|
|
extension is not an associative one, you will have to override this. See
|
|
adodb-odbc.inc.php for an example. For databases such as MySQL and MSSQL
|
|
where an associative array is returned, there is no need to override this
|
|
function.</font></p>
|
|
<p><font><b>ADOConnection Fields to Set</b></font></p>
|
|
<p><font>canSeek: Set to true if the _seek function works.</font></p>
|
|
<h2><font>ToDo:</font></h2>
|
|
<p><font>See the <a href="http://php.weblogs.com/adodb-todo-roadmap">RoadMap</a> article.</font></p>
|
|
<p><font>Also see the ADOdb <a href="http://php.weblogs.com/adodb_csv">proxy</a> article
|
|
for bridging Windows and Unix databases using http remote procedure calls.
|
|
For your education, visit <a href="http://palslib.com/">palslib.com</a> for
|
|
database info, and read this article on <a href="http://phplens.com/lens/php-book/optimizing-debugging-php.php">Optimizing
|
|
PHP</a>. </font></p>
|
|
|
|
<h2><font>Change Log<a name="Changes"></a><a name="changes"></a><a name="changelog"></a></font></h2>
|
|
<p><a name="4.55"></a><b>4.55 5 Jan 2004</b>
|
|
<p>Found bug in Execute() with bind params for db's that do not support binding natively.
|
|
<p>DropSequence() now correctly uses default parameter.
|
|
<p>Now Execute() ignores locale for floats, so 1.23 is NEVER converted to 1,23.
|
|
<p>SetFetchMode() not properly saved in adodb-perf, suspicious sql and expensive sql. Fixed.
|
|
<p>Added INET to postgresql metatypes. Thx motzel.
|
|
<p>Allow oracle hints to work when counting with _adodb_getcount in adodb-lib.inc.php. Thx Chris Wrye.
|
|
<p>Changed mysql insert_id() to use SELECT LAST_INSERT_ID().
|
|
<p>If alter col in datadict does not modify col type/size of actual col, then it is removed from alter col code. By Mark Newham. Not perfect as MetaType() !== ActualType().
|
|
<p>Added handling of view fields in metacolumns() for postgresql. Thx Renato De Giovanni.
|
|
<p>Added to informix MetaPrimaryKeys and MetaColumns fixes for null bit. Thx to Cecilio Albero.
|
|
<p>Removed obsolete connection_timeout() from perf code.
|
|
<p>Added support for arrayClass in adodb-csv.inc.php.
|
|
<p>RSFilter now accepts methods of the form $array($obj, 'methodname'). Thx to blake#near-time.com.
|
|
<p>Changed CacheFlush to $cmd = 'rm -rf '.$ADODB_CACHE_DIR.'/[0-9a-f][0-9a-f]/';
|
|
<p>For better cursor concurrency, added code to free ref cursors in oci8 when $rs->Close() is called. Note that CLose() is called internally by the Get* functions too.
|
|
<p>Added IIF support for access when pivoting. Thx Volodia Krupach.
|
|
<p>Added mssql datadict support for timestamp. Thx Alexios.
|
|
<p>Informix pager fix. By Mario Ramirez.
|
|
<p>ADODB_TABLE_REGEX now includes ':'. By Mario Ramirez.
|
|
<p>Mark Newnham contributed MetaIndexes for oci8 and db2.
|
|
<p><a name="4.54"></a><b>4.54 5 Nov 2004</b>
|
|
<p>
|
|
Now you can set $db->charSet = ?? before doing a Connect() in oci8.
|
|
<p>
|
|
Added adodbFetchMode to sqlite.
|
|
<p>
|
|
Perf code, added a string typecast to substr in adodb_log_sql().
|
|
<p>
|
|
Postgres: Changed BlobDecode() to use po_loread, added new $maxblobsize parameter, and now it returns the blob instead
|
|
of sending it to stdout - make sure to mention that as a compat warning.
|
|
Also added $db->IsOID($oid) function; uses a heuristic, not guaranteed to work 100%.
|
|
<p>
|
|
Contributed arabic language file by "El-Shamaa, Khaled" k.el-shamaa#cgiar.org
|
|
<p>
|
|
PHP5 exceptions did not handle @ protocol properly. Fixed.
|
|
<p>
|
|
Added ifnull handling for postgresql (using coalesce).
|
|
<p>
|
|
Added metatables() support for Postgresql 8.0 (no longer uses pg_% dictionary tables).
|
|
<p>
|
|
Improved Sybase ErrorMsg() function. By Gaetano Giunta.
|
|
<p>
|
|
Improved oci8 SelectLimit() to use Prepare(). By Cristiano Duarte.
|
|
<P>
|
|
Type-cast $row parameter in ifx_fetch_row() to int. Thx stefan bodgan.
|
|
<p>Ralf becker contributed improvements in postgresql, sapdb, mysql data dictionary handling:<br>
|
|
- MySql and Postgres MetaType was reporting every int column which was
|
|
part of a primary key and unique as serial<br>
|
|
- Postgres was not reporting the scale of decimal types<br>
|
|
- MaxDB was padding the defaults of none-string types with spaces<br>
|
|
- MySql now correctly converts enum columns to varchar
|
|
<p>
|
|
Ralf also changed Postgresql datadict:<br>
|
|
- you cant add NOT NULL columns in postgres in one go, they need to be
|
|
added as NULL and then altered to NOT NULL<br>
|
|
- AlterColumnSQL could not change a varchar column with numbers into an
|
|
integer column, postgres need an explicit conversation<br>
|
|
- a re-created sequence was not set to the correct value, if the name
|
|
was the old name (no implicit sequence), now always the new name of the
|
|
implicit sequence is used<br>
|
|
<p>Sergio Strampelli added extra $intoken check to Lens_ParseArgs() in datadict code.
|
|
<p><a name="4.53"></a><b>4.53 28 Sept 2004</b>
|
|
</p><p>FetchMode cached in recordset is sometimes mapped to native db fetchMode. Normally this does not matter,
|
|
but when using cached recordsets, we need to switch back to using adodb fetchmode. So we cache this
|
|
in $rs->adodbFetchMode if it differs from the db's fetchMode.
|
|
</p><p>For informix we now set canSeek = false driver because stefan bodgan tells me that seeking doesn't work.
|
|
</p><p>SetDateLocale() never worked till now ;-) Thx david#tomato.it
|
|
</p><p>Set $_bindInputArray = true in sapdb driver. Required for clob support.
|
|
</p><p>Fixed some PEAR::DB emulation issues with isError() and isWarning. Thx to Gert-Rainer Bitterlich.
|
|
</p><p>Empty() used in getupdatesql without strlen() check. Fixed.</p>
|
|
<p>Added unsigned detection to mysql and mysqli drivers. Thx to dan cech.
|
|
</p><p>Added hungarian language file. Thx to Halászvári Gábor.
|
|
</p><p>Improved fieldname-type formatting of datadict SQL generated (adding $widespacing parameter to _GenField).
|
|
</p><p>Datadict oci8 DROP CONSTRAINTS misspelt. Fixed. Thx Mark Newnham.
|
|
</p><p>Changed odbtp to dynamically change databaseType based on connection, eg. from 'odbtp' to 'odbtp_mssql' when connecting
|
|
to mssql database.
|
|
</p><p>In datadict, MySQL I4 was wrongly mapped to MEDIUMINT, which is actually I3. Fixed.
|
|
</p><p>Fixed mysqli MetaType() recognition. Mysqli returns numeric types unlike mysql extension. Thx Francesco Riosa.
|
|
</p><p>VFP odbc driver curmode set wrongly, causing problems with memo fields. Fixed.
|
|
</p><p>Odbc driver did not recognize odbc version 2 driver date types properly. Fixed. Thx Bostjan.
|
|
</p><p>ChangeTableSQL() fixes to datadict-db2.inc.php by Mark Newnham.
|
|
</p><p>Perf monitoring with odbc improved. Now we try in perf code to manually set the sysTimeStamp using date() if sysTimeStamp
|
|
is empty.
|
|
</p><p>All ADO errors are thrown as exceptions in PHP5.
|
|
So we added exception handling to ado in PHP5 by creating new adodb-ado5.inc.php driver.
|
|
</p><p>Added IsConnected(). Returns true if connection object connected. By Luca.Gioppo.
|
|
</p><p>"Ralf Becker"
|
|
RalfBecker#digitalROCK.de contributed new sapdb data-dictionary driver
|
|
and a large patch that implements field and table renaming for oracle,
|
|
mssql, postgresql, mysql and sapdb. See the new RenameTableSQL() and
|
|
RenameColumnSQL() functions.
|
|
</p><p>We now check ExecuteCursor to see if PrepareSP was initially called.
|
|
</p><p>Changed oci8 datadict to use MODIFY for $dd->alterCol. Thx Mark Newnham.
|
|
</p><p><a name="4.52"></a><b>4.52 10 Aug 2004</b>
|
|
</p><p>Bug found in Replace() when performance logging enabled, introduced in ADOdb 4.50. Fixed.
|
|
</p><p>Replace() checks update stmt. If update stmt fails, we now return immediately. Thx to alex.
|
|
</p><p>Added support for $ADODB_FORCE_TYPE in GetUpdateSQL/GetInsertSQL. Thx to niko.
|
|
</p><p>Added ADODB_ASSOC_CASE support to postgres/postgres7 driver.
|
|
</p><p>Support for DECLARE stmt in oci8. Thx Lochbrunner.
|
|
</p><p><a name="4.51"></a><b>4.51 29 July 2004</b>
|
|
</p><p>Added adodb-xmlschema 1.0.2. Thx dan and richard.
|
|
</p><p>Added new adorecordset_ext_* classes. If ADOdb extension installed for mysql, mysqlt and oci8
|
|
(but not oci8po), we use the superfast ADOdb extension code for movenext.
|
|
</p><p>Added schema support to mssql and odbc_mssql MetaPrimaryKeys().
|
|
</p><p>Patched MSSQL driver to support PHP NULL and Boolean values
|
|
while binding the input array parameters in the _query() function. By Stephen Farmer.
|
|
</p><p>Added support for clob's for mssql, UpdateBlob(). Thx to gfran#directa.com.br
|
|
</p><p>Added normalize support for postgresql (true=lowercase table name, or false=case-sensitive table names)
|
|
to MetaColumns($table, $normalize=true).
|
|
</p><p>PHP5 variant dates in ADO not working. Fixed in adodb-ado.inc.php.
|
|
</p><p>Constant ADODB_FORCE_NULLS was not working properly for many releases (for GetUpdateSQL). Fixed.
|
|
Also GetUpdateSQL strips off ORDER BY now - thx Elieser Leão.
|
|
</p><p>Perf Monitor for oci8 now dynamically highlights optimizer_* params if too high/low.
|
|
</p><p>Added dsn support to NewADOConnection/ADONewConnection.
|
|
</p><p>Fixed out of page bounds bug in _adodb_pageexecute_all_rows() Thx to "Sergio Strampelli" sergio#rir.it
|
|
</p><p>Speedup of movenext for mysql and oci8 drivers.
|
|
</p><p>Moved debugging code _adodb_debug_execute() to adodb-lib.inc.php.
|
|
</p><p>Fixed postgresql bytea detection bug. See http://phplens.com/lens/lensforum/msgs.php?id=9849.
|
|
</p><p>Fixed ibase datetimestamp typo in PHP5. Thx stefan.
|
|
</p><p>Removed whitespace at end of odbtp drivers.
|
|
</p><p>Added db2 metaprimarykeys fix.
|
|
</p><p>Optimizations to MoveNext() for mysql and oci8. Misc speedups to Get* functions.
|
|
</p><p><a name="4.50"></a><b>4.50 6 July 2004</b>
|
|
</p><p>Bumped it to 4.50 to avoid confusion with PHP 4.3.x series.
|
|
</p><p>Added db2 metatables and metacolumns extensions.
|
|
</p><p>Added alpha PDO driver. Very buggy, only works with odbc.
|
|
</p><p>Tested mysqli. Set poorAffectedRows = true. Cleaned up movenext() and _fetch().
|
|
</p><p>PageExecute does not work properly with php5 (return val not a variable). Reported Dmytro Sychevsky sych#php.com.ua. Fixed.
|
|
</p><p>MetaTables() for mysql, $showschema parameter was not backward compatible with older versions of adodb. Fixed.
|
|
</p><p>Changed mysql GetOne() to work with mysql 3.23 when using with non-select stmts (e.g. SHOW TABLES).
|
|
</p><p>Changed TRIG_ prefix to a variable in datadict-oci8.inc.php. Thx to Luca.Gioppo#csi.it.
|
|
</p><p>New to adodb-time code. We allow you to define your own daylights savings function,
|
|
adodb_daylight_sv for pre-1970 dates. If the function is defined
|
|
(somewhere in an include), then you can correct
|
|
for daylights savings. See http://phplens.com/phpeverywhere/node/view/16#daylightsavings
|
|
for more info.
|
|
</p><p>New sqlitepo driver. This is because assoc mode does not work like other drivers in sqlite.
|
|
Namely, when selecting (joining) multiple tables, in assoc mode the table
|
|
names are included in the assoc keys in the "sqlite" driver.
|
|
In "sqlitepo" driver, the table names are stripped from the returned column names.
|
|
When this results in a conflict, the first field get preference.
|
|
Contributed by Herman Kuiper herman#ozuzo.net
|
|
</p><p>Added $forcenull parameter to GetInsertSQL/GetUpdateSQL. Idea by Marco Aurelio Silva.
|
|
</p><p>More XHTML changes for GetMenu. By Jeremy Evans.
|
|
</p><p>Fixes some ibase date issues. Thx to stefan bogdan.
|
|
</p><p>Improvements to mysqli driver to support $ADODB_COUNTRECS.
|
|
</p><p>Fixed adodb-csvlib.inc.php problem when reading stream from socket. We need to poll stream continiously.
|
|
</p><p><a name="4.23"></a><b>4.23 16 June 2004</b>
|
|
</p><p>
|
|
New interbase/firebird fixes thx to Lester Caine.
|
|
Driver fixes a problem with getting field names in the result array, and
|
|
corrects a couple of data conversions. Also we default to dialect3 for firebird.
|
|
Also ibase sysDate property was wrong. Changed to cast as timestamp.
|
|
</p><p>
|
|
The datadict driver is set up to give quoted tables and fields as this
|
|
was the only way round reserved words being used as field names in
|
|
TikiWiki. TikiPro is tidying that up, and I hope to be able to produce a
|
|
build of THAT which uses what I consider proper UPPERCASE field and
|
|
table names. The conversion of TikiWiki to ADOdb helped in that, but
|
|
until the database is completely tidied up in TikiPro ...
|
|
</p><p>Modified _gencachename() to include fetchmode in name hash.
|
|
This means you should clear your cache directory after installing this release as the
|
|
cache name algorithm has changed.
|
|
</p><p>Now Cache* functions work in safe
|
|
mode, because we do not create sub-directories in the $ADODB_CACHE_DIR
|
|
in safe mode. In non-safe mode we still create sub-directories. Done by
|
|
modifying _gencachename().
|
|
</p><p>Added $gmt parameter (true/false)
|
|
to UserDate and UserTimeStamp in connection class, to force conversion
|
|
of input (in local time) to be converted to UTC/GMT.
|
|
</p><p>Mssql datadict did not support INT types properly (no size param allowed).
|
|
Added _GetSize() to datadict-mssql.inc.php.
|
|
</p><p>For borland_ibase, BeginTrans(), changed:<br>
|
|
</p><pre> $this->_transactionID = $this->_connectionID;</pre>
|
|
to<br>
|
|
<pre> $this->_transactionID = ibase_trans($this->ibasetrans, $this->_connectionID);</pre>
|
|
|
|
<p>Fixed typo in mysqi_field_seek(). Thx to Sh4dow (sh4dow#php.pl).
|
|
</p><p>LogSQL did not work with Firebird/Interbase. Fixed.
|
|
</p><p>Postgres: made errorno() handling more consistent. Thx to Michael Jahn, Michael.Jahn#mailbox.tu-dresden.de.
|
|
</p><p>Added informix patch to better support metatables, metacolumns by "Cecilio Albero" c-albero#eos-i.com
|
|
</p><p>Cyril Malevanov contributed patch to oci8 to support passing of LOB parameters:
|
|
</p><pre> $text = 'test test test';<br> $sql = "declare rs clob; begin :rs := lobinout(:sa0); end;";<br> $stmt = $conn -> PrepareSP($sql);<br> $conn -> InParameter($stmt,$text,'sa0', -1, OCI_B_CLOB);<br> $rs = '';<br> $conn -> OutParameter($stmt,$rs,'rs', -1, OCI_B_CLOB);<br> $conn -> Execute($stmt);<br> echo "return = ".$rs."<br>";<br></pre>
|
|
As he says, the LOBs limitations are:
|
|
<pre> - use OCINewDescriptor before binding<br> - if Param is IN, uses save() before each execute. This is done automatically for you.<br> - if Param is OUT, uses load() after each execute. This is done automatically for you.<br> - when we bind $var as LOB, we create new descriptor and return it as a<br> Bind Result, so if we want to use OUT parameters, we have to store<br> somewhere &$var to load() data from LOB to it.<br> - IN OUT params are not working now (should not be a big problem to fix it)<br> - now mass binding not working too (I've wrote about it before)<br></pre>
|
|
<p>Simplified Connect() and PConnect() error handling.
|
|
</p><p>When extension not loaded, Connect() and PConnect() will return null. On connect error, the fns will return false.
|
|
</p><p>CacheGetArray() added to code.
|
|
</p><p>Added Init() to adorecordset_empty().
|
|
</p><p>Changed postgres64 driver, MetaColumns() to not strip off quotes in default value if :: detected (type-casting of default).
|
|
</p><p>Added test: if (!defined('ADODB_DIR')) die(). Useful to prevent hackers from detecting file paths.
|
|
</p><p>Changed metaTablesSQL to ignore Postgres 7.4 information schemas (sql_*).
|
|
</p><p>New polish language file by Grzegorz Pacan
|
|
</p><p>Added support for UNION in _adodb_getcount().
|
|
</p><p>Added security check for ADODB_DIR to limit path disclosure issues. Requested by postnuke team.
|
|
</p><p>Added better error message support to oracle driver. Thx to Gaetano Giunta.
|
|
</p><p>Added showSchema support to mysql.
|
|
</p><p>Bind in oci8 did not handle $name=false properly. Fixed.
|
|
</p><p>If extension not loaded, Connect(), PConnect(), NConnect() will return null.
|
|
</p><p><b>4.22 15 Apr 2004</b>
|
|
</p><p>Moved docs to own adodb/docs folder.
|
|
</p><p>Fixed session bug when quoting compressed/encrypted data in Replace().
|
|
</p><p>Netezza Driver and LDAP drivers contributed by Josh Eldridge.
|
|
</p><p>GetMenu now uses rtrim() on values instead of trim().
|
|
</p><p>Changed MetaColumnNames to return an associative array, keys being the field names in uppercase.
|
|
</p><p>Suggested fix to adodb-ado.inc.php affected_rows to support PHP5 variants. Thx to Alexios Fakos.
|
|
</p><p>Contributed bulgarian language file by Valentin Sheiretsky valio#valio.eu.org.
|
|
</p><p>Contributed romanian language file by stefan bogdan.
|
|
</p><p>GetInsertSQL now checks for table name (string) in $rs, and will create a recordset for that
|
|
table automatically. Contributed by Walt Boring. Also added OCI_B_BLOB in bind on Walt's request - hope
|
|
it doesn't break anything :-)
|
|
</p><p>Some minor postgres speedups in _initrs().
|
|
</p><p> ChangeTableSQL checks now if MetaColumns returns empty. Thx Jason Judge.
|
|
</p><p>Added ADOConnection::Time(), returns current database time in unix timestamp format, or false.
|
|
</p><p><b>4.21 20 Mar 2004</b>
|
|
</p><p>We no longer in SelectLimit for VFP driver add SELECT TOP X unless an ORDER BY exists.
|
|
</p><p>Pim Koeman contributed dutch language file adodb-nl.inc.php.
|
|
</p><p>Rick Hickerson added CLOB support to db2 datadict.
|
|
</p><p>Added odbtp driver. Thx to "stefan bogdan" sbogdan#rsb.ro.
|
|
</p><p>Changed PrepareSP() 2nd parameter, $cursor, to default to true (formerly false). Fixes oci8 backward
|
|
compat problems with OUT params.
|
|
</p><p>Fixed month calculation error in adodb-time.inc.php. 2102-June-01 appeared as 2102-May-32.
|
|
</p><p>Updated PHP5 RC1 iterator support. API changed, hasMore() renamed to valid().
|
|
</p><p>Changed internal format of serialized cache recordsets. As we store a version number, this should be
|
|
backward compatible.
|
|
</p><p>Error handling when driver file not found was flawed in ADOLoadCode(). Fixed.
|
|
</p><p><b>4.20 27 Feb 2004</b>
|
|
</p><p>Updated to AXMLS 1.01.
|
|
</p><p>MetaForeignKeys for postgres7 modified by Edward Jaramilla, works on pg 7.4.
|
|
</p><p>Now numbers accepts function calls or sequences for GetInsertSQL/GetUpdateSQL numeric fields.
|
|
</p><p>Changed quotes of 'delete from $perf_table' to "". Thx Kehui (webmaster#kehui.net)
|
|
</p><p>Added ServerInfo() for ifx, and putenv trim fix. Thx Fernando Ortiz.
|
|
</p><p>Added addq(), which is analogous to addslashes().
|
|
</p><p>Tested with php5b4. Fix some php5 compat problems with exceptions and sybase.
|
|
</p><p>Carl-Christian Salvesen added patch to mssql _query to support binds greater than 4000 chars.
|
|
</p><p>Mike suggested patch to PHP5 exception handler. $errno must be numeric.
|
|
</p><p>Added double quotes (") to ADODB_TABLE_REGEX.
|
|
</p><p>For oci8, Prepare(...,$cursor),
|
|
$cursor's meaning was accidentally inverted in 4.11. This causes
|
|
problems with ExecuteCursor() too, which calls Prepare() internally.
|
|
Thx to William Lovaton.
|
|
</p><p>Now dateHasTime property in connection object renamed to datetime for consistency. This could break bc.
|
|
</p><p>Csongor Halmai reports that db2 SelectLimit with input array is not working. Fixed..
|
|
</p><p><b>4.11 27 Jan 2004</b>
|
|
</p><p>Csongor Halmai reports db2 binding not working. Reverted back to emulated binding.
|
|
</p><p>Dan Cech modifies datadict code. Adds support for DropIndex. Minor cleanups.
|
|
</p><p>Table misspelt in perf-oci8.inc.php. Changed v$conn_cache_advice to v$db_cache_advice. Reported by Steve W.
|
|
</p><p>UserTimeStamp and DBTimeStamp did not handle YYYYMMDDHHMMSS format properly. Reported by Mike Muir. Fixed.
|
|
</p><p>Changed oci8 Prepare(). Does not auto-allocate OCINewCursor automatically, unless 2nd param is set to true.
|
|
This will break backward compat, if Prepare/Execute is used instead of ExecuteCursor. Reported by Chris Jones.
|
|
</p><p>Added InParameter() and OutParameter(). Wrapper functions to Parameter(), but nicer because they
|
|
are self-documenting.
|
|
</p><p>Added 'R' handling in ActualType() to datadict-mysql.inc.php
|
|
</p><p>Added ADOConnection::SerializableRS($rs). Returns a recordset that can be serialized in a session.
|
|
</p><p>Added "Run SQL" to performance UI().
|
|
</p><p>Misc spelling corrections in adodb-mysqli.inc.php, adodb-oci8.inc.php and datadict-oci8.inc.php, from Heinz Hombergs.
|
|
</p><p>MetaIndexes() for ibase contributed by Heinz Hombergs.
|
|
</p><p><b>4.10 12 Jan 2004</b>
|
|
</p><p>Dan Cech contributed extensive changes to data dictionary to support name quoting (with `), and drop table/index.
|
|
</p><p>Informix added cursorType property. Default remains IFX_SCROLL, but you can change to 0 (non-scrollable cursor) for performance.
|
|
</p><p>Added ADODB_View_PrimaryKeys() for returning view primary keys to MetaPrimaryKeys().
|
|
</p><p>Simplified chinese file, adodb-cn.inc.php from cysoft.
|
|
</p><p>Added check for ctype_alnum in adodb-datadict.inc.php. Thx to Jason Judge.
|
|
</p><p>Added connection parameter to ibase Prepare(). Fix by Daniel Hassan.
|
|
</p><p>Added nameQuote for quoting identifiers and names to connection obj. Requested by Jason Judge. Also the
|
|
data dictionary parser now detects `field name` and generates column names with spaces correctly.
|
|
</p><p>BOOL type not recognised correctly as L. Fixed.
|
|
</p><p>Fixed paths in ADODB_DIR for session files, and back-ported it to 4.05 (15 Dec 2003)
|
|
</p><p>Added Schema to postgresql MetaTables. Thx to col#gear.hu
|
|
</p><p>Empty postgresql recordsets that had blob fields did not set EOF properly. Fixed.
|
|
</p><p>CacheSelectLimit internal parameters to SelectLimit were wrong. Thx to Nio.
|
|
</p><p>Modified adodb_pr() and adodb_backtrace() to support command-line usage (eg. no html).
|
|
</p><p>Fixed some fr and it lang errors. Thx to Gaetano G.
|
|
</p><p>Added contrib directory, with adodb rs to xmlrpc convertor by Gaetano G.
|
|
</p><p>Fixed array recordset bugs when _skiprow1 is true. Thx to Gaetano G.
|
|
</p><p>Fixed pivot table code when count is false.
|
|
</p><p>
|
|
|
|
</p><p><b>4.05 13 Dec 2003 </b>
|
|
</p><p>Added MetaIndexes to data-dict code - thx to Dan Cech.
|
|
</p><p>Rewritten session code by Ross Smith. Moved code to adodb/session directory.
|
|
</p><p>Added function exists check on connecting to most drivers, so we don't crash with the unknown function error.
|
|
</p><p>Smart Transactions failed with GenID() when it no seq table has been created because the sql
|
|
statement fails. Fix by Mark Newnham.
|
|
</p><p>Added $db->length, which holds name of function that returns strlen.
|
|
</p><p>Fixed error handling for bad driver in ADONewConnection - passed too few params to error-handler.
|
|
</p><p>Datadict did not handle types like 16.0 properly in _GetSize. Fixed.
|
|
</p><p>Oci8 driver SelectLimit() bug &= instead of =& used. Thx to Swen Thümmler.
|
|
</p><p>Jesse Mullan suggested not flushing outp when output buffering enabled. Due to Apache 2.0 bug. Added.
|
|
</p><p>MetaTables/MetaColumns return ref bug with PHP5 fixed in adodb-datadict.inc.php.
|
|
</p><p>New mysqli driver contributed by Arjen de Rijke. Based on adodb 3.40 driver.
|
|
Then jlim added BeginTrans, CommitTrans, RollbackTrans, IfNull, SQLDate. Also fixed return ref bug.
|
|
</p><p>$ADODB_FLUSH added, if true then force flush in debugging outp. Default is false. In earlier
|
|
versions, outp defaulted to flush, which is not compat with apache 2.0.
|
|
</p><p>Mysql driver's GenID() function did not work when when sql logging is on. Fixed.
|
|
</p><p>$ADODB_SESSION_TBL not declared as global var. Not available if adodb-session.inc.php included in function. Fixed.
|
|
</p><p>The input array not passed to Execute() in _adodb_getcount(). Fixed.
|
|
</p><p><b>4.04 13 Nov 2003 </b>
|
|
</p><p>Switched back to foreach - faster than list-each.
|
|
</p><p>Fixed bug in ado driver - wiping out $this->fields with date fields.
|
|
</p><p>Performance Monitor, View SQL, Explain Plan did not work if strlen($SQL)>max($_GET length). Fixed.
|
|
</p><p>Performance monitor, oci8 driver added memory sort ratio.
|
|
</p><p>Added random property, returns SQL to generate a floating point number between 0 and 1;
|
|
</p><p><b>4.03 6 Nov 2003 </b>
|
|
</p><p>The path to adodb-php4.inc.php and adodb-iterators.inc.php was not setup properly.
|
|
</p><p>Patched SQLDate in interbase to support hours/mins/secs. Thx to ari kuorikoski.
|
|
</p><p>Force autorollback for pgsql persistent connections -
|
|
apparently pgsql did not autorollback properly before 4.3.4. See http://bugs.php.net/bug.php?id=25404
|
|
</p><p><b>4.02 5 Nov 2003 </b>
|
|
</p><p>Some errors in adodb_error_pg() fixed. Thx to Styve.
|
|
</p><p>Spurious Insert_ID() error was generated by LogSQL(). Fixed.
|
|
</p><p>Insert_ID was interfering with Affected_Rows() and Replace() when LogSQL() enabled. Fixed.
|
|
</p><p>More foreach loops optimized with list/each.
|
|
</p><p>Null dates not handled properly in ADO driver (it becomes 31 Dec 1969!).
|
|
</p><p>Heinz Hombergs contributed patches for mysql MetaColumns - adding scale, made
|
|
interbase MetaColumns work with firebird/interbase, and added lang/adodb-de.inc.php.
|
|
</p><p>Added INFORMIXSERVER environment variable.
|
|
</p><p>Added $ADODB_ANSI_PADDING_OFF for interbase/firebird.
|
|
</p><p>PHP 5 beta 2 compat check. Foreach (Iterator) support. Exceptions support.
|
|
</p><p><b>4.01 23 Oct 2003 </b>
|
|
</p><p>Fixed bug in rs2html(), tohtml.inc.php, that generated blank table cells.
|
|
</p><p>Fixed insert_id() incorrectly generated when logsql() enabled.
|
|
</p><p>Modified PostgreSQL _fixblobs to use list/each instead of foreach.
|
|
</p><p>Informix ErrorNo() implemented correctly.
|
|
</p><p>Modified several places to use list/each, including GetRowAssoc().
|
|
</p><p>Added UserTimeStamp() to connection class.
|
|
</p><p>Added $ADODB_ANSI_PADDING_OFF for oci8po.
|
|
</p><p><b>4.00 20 Oct 2003 </b>
|
|
</p><p>Upgraded adodb-xmlschema to 1 Oct 2003 snapshot.
|
|
</p><p>Fix to rs2html warning message. Thx to Filo.
|
|
</p><p>Fix for odbc_mssql/mssql SQLDate(), hours was wrong.
|
|
</p><p>Added MetaColumns and MetaPrimaryKeys for sybase. Thx to Chris Phillipson.
|
|
</p><p>Added autoquoting to datadict for MySQL and PostgreSQL. Suggestion by Karsten Dambekalns
|
|
</p><p><b>3.94 11 Oct 2003 </b>
|
|
</p><p>Create trigger in datadict-oci8.inc.php did not work, because all cr/lf's must be removed.
|
|
</p><p>ErrorMsg()/ErrorNo() did not work for many databases when logging enabled. Fixed.
|
|
</p><p>Removed global variable $ADODB_LOGSQL as it does not work properly with multiple connections.
|
|
</p><p>Added SQLDate support for sybase. Thx to Chris Phillipson
|
|
</p><p>Postgresql checking of pgsql resultset resource was incorrect. Fix by Bharat Mediratta bharat#menalto.com.
|
|
Same patch applied to _insertid and _affectedrows for adodb-postgres64.inc.php.
|
|
</p><p>Added support for NConnect for postgresql.
|
|
</p><p>Added Sybase data dict support. Thx to Chris Phillipson
|
|
</p><p>Extensive improvements in $perf->UI(), eg. Explain now opens in new window, we show scripts
|
|
which call sql, etc.
|
|
</p><p>Perf Monitor UI works with magic quotes enabled.
|
|
</p><p>rsPrefix was declared twice. Removed.
|
|
</p><p>Oci8 stored procedure support, eg. "begin func(); end;" was incorrect in _query. Fixed.
|
|
</p><p>Tiraboschi Massimiliano contributed italian language file.
|
|
</p><p>Fernando Ortiz, fortiz#lacorona.com.mx, contributed informix performance monitor.
|
|
</p><p>Added _varchar (varchar arrays) support for postgresql. Reported by PREVOT Stéphane.
|
|
</p><p><b>3.92 22 Sept 2003</b>
|
|
</p><p>Added GetAssoc and CacheGetAssoc to connection object.
|
|
</p><p>Removed TextMax and CharMax functions from adodb.inc.php.
|
|
</p><p>HasFailedTrans() returned false when trans failed. Fixed.
|
|
</p><p>Moved perf driver classes into adodb/perf/*.php.
|
|
</p><p>Misc improvements to performance monitoring, including UI().
|
|
</p><p>RETVAL in mssql Parameter(), we do not append @ now.
|
|
</p><p>Added Param($name) to connection class, returns '?' or ":$name", for defining
|
|
bind parameters portably.
|
|
</p><p>LogSQL traps affected_rows() and saves its value properly now. Also fixed oci8
|
|
_stmt and _affectedrows() bugs.
|
|
</p><p>Session code timestamp check for oci8 works now. Formerly default NLS_DATE_FORMAT
|
|
stripped off time portion. Thx to Tony Blair (tonanbarbarian#hotmail.com). Also
|
|
added new $conn->datetime field to oci8, controls whether MetaType() returns
|
|
'D' ($this->datetime==false) or 'T' ($this->datetime == true) for DATE type.
|
|
</p><p>Fixed bugs in adodb-cryptsession.inc.php and adodb-session-clob.inc.php.
|
|
</p><p>Fixed misc bugs in adodb_key_exists, GetInsertSQL() and GetUpdateSQL().
|
|
</p><p>Tuned include_once handling to reduce file-system checking overhead.
|
|
</p><p><b>3.91 9 Sept 2003</b>
|
|
</p><p>Only released to InterAkt
|
|
</p><p>Added LogSQL() for sql logging and $ADODB_NEWCONNECTION to override factory
|
|
for driver instantiation.
|
|
</p><p>Added IfNull($field,$ifNull) function, thx to johnwilk#juno.com
|
|
</p><p>Added portable substr support.
|
|
</p><p>Now rs2html() has new parameter, $echo. Set to false to return $html instead
|
|
of echoing it.
|
|
</p><p><b>3.90 5 Sept 2003</b>
|
|
</p><p>First beta of performance monitoring released.
|
|
</p><p>MySQL supports MetaTable() masking.
|
|
</p><p>Fixed key_exists() bug in adodb-lib.inc.php
|
|
</p><p>Added sp_executesql Prepare() support to mssql.
|
|
</p><p>Added bind support to db2.
|
|
</p><p>Added swedish language file - Christian Tiberg" christian#commsoft.nu
|
|
</p><p>Bug in drop index for mssql data dict fixed. Thx to Gert-Rainer Bitterlich.
|
|
</p><p>Left join setting for oci8 was wrong. Thx to johnwilk#juno.com
|
|
</p><p><b>3.80 27 Aug 2003</b>
|
|
</p><p>Patch for PHP 4.3.3 cached recordset csv2rs() fread loop incompatibility.
|
|
</p><p>Added matching mask for MetaTables. Only for oci8, mssql and postgres currently.
|
|
</p><p>Rewrite of "oracle" driver connection code, merging with "oci8", by Gaetano.
|
|
</p><p>Added better debugging for Smart Transactions.
|
|
</p><p>Postgres DBTimeStamp() was wrongly using TO_DATE. Changed to TO_TIMESTAMP.
|
|
</p><p>ADODB_FETCH_CASE check pushed to ADONewConnection to allow people to define
|
|
it after including adodb.inc.php.
|
|
</p><p>Added portugese (brazilian) to languages. Thx to "Levi Fukumori".
|
|
</p><p>Removed arg3 parameter from Execute/SelectLimit/Cache* functions.
|
|
</p><p>Execute() now accepts 2-d array as $inputarray. Also changed docs of fnExecute()
|
|
to note change in sql query counting with 2-d arrays.
|
|
</p><p>Added MONEY to MetaType in PostgreSQL.
|
|
</p><p>Added more debugging output to CacheFlush().
|
|
</p><p><b>3.72 9 Aug 2003</b>
|
|
</p><p>Added qmagic($str), which is a qstr($str) that auto-checks for magic quotes
|
|
and does the right thing...
|
|
</p><p>Fixed CacheFlush() bug - Thx to martin#gmx.de
|
|
</p><p>Walt Boring contributed MetaForeignKeys for postgres7.
|
|
</p><p>_fetch() called _BlobDecode() wrongly in interbase. Fixed.
|
|
</p><p>adodb_time bug fixed with dates after 2038 fixed by Jason Pell. http://phplens.com/lens/lensforum/msgs.php?id=6980
|
|
</p><p><b>3.71 4 Aug 2003</b>
|
|
</p><p>The oci8 driver, MetaPrimaryKeys() did not check the owner correctly when $owner
|
|
== false.
|
|
</p><p>Russian language file contributed by "Cyrill Malevanov" cyrill#malevanov.spb.ru.
|
|
</p><p>Spanish language file contributed by "Horacio Degiorgi" horaciod#codigophp.com.
|
|
</p><p>Error handling in oci8 bugfix - if there was an error in Execute(), then when
|
|
calling ErrorNo() and/or ErrorMsg(), the 1st call would return the error, but
|
|
the 2nd call would return no error.
|
|
</p><p>Error handling in odbc bugfix. ODBC would always return the last error, even
|
|
if it happened 5 queries ago. Now we reset the errormsg to '' and errorno to
|
|
0 everytime before CacheExecute() and Execute().
|
|
</p><p><b>3.70 29 July 2003</b>
|
|
</p><p>Added new SQLite driver. Tested on PHP 4.3 and PHP 5.
|
|
</p><p>Added limited "sapdb" driver support - mainly date support.
|
|
</p><p>The oci8 driver did not identify NUMBER with no defined precision correctly.
|
|
</p><p>Added ADODB_FORCE_NULLS, if set, then PHP nulls are converted to SQL nulls
|
|
in GetInsertSQL/GetUpdateSQL.
|
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</p><p>DBDate() and DBTimeStamp() format for postgresql had problems. Fixed.
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</p><p>Added tableoptions to ChangeTableSQL(). Thx to Mike Benoit.
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</p><p>Added charset support to postgresql. Thx to Julian Tarkhanov.
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</p><p>Changed OS check for MS-Windows to prevent confusion with darWIN (MacOS)
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</p><p>Timestamp format for db2 was wrong. Changed to yyyy-mm-dd-hh.mm.ss.nnnnnn.
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</p><p>adodb-cryptsession.php includes wrong. Fixed.
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</p><p>Added MetaForeignKeys(). Supported by mssql, odbc_mssql and oci8.
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</p><p>Fixed some oci8 MetaColumns/MetaPrimaryKeys bugs. Thx to Walt Boring.
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</p><p>adodb_getcount() did not init qryRecs to 0. Missing "WHERE" clause checking
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in GetUpdateSQL fixed. Thx to Sebastiaan van Stijn.
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</p><p>Added support for only 'VIEWS' and "TABLES" in MetaTables. From Walt Boring.
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</p><p>Upgraded to adodb-xmlschema.inc.php 0.0.2.
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</p><p>NConnect for mysql now returns value. Thx to Dennis Verspuij.
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</p><p>ADODB_FETCH_BOTH support added to interbase/firebird.
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</p><p>Czech language file contributed by Kamil Jakubovic jake#host.sk.
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</p><p>PostgreSQL BlobDecode did not use _connectionID properly. Thx to Juraj Chlebec.
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</p><p>Added some new initialization stuff for Informix. Thx to "Andrea Pinnisi" pinnisi#sysnet.it
|
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</p><p>ADODB_ASSOC_CASE constant wrong in sybase _fetch(). Fixed.
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</p><p><b>3.60 16 June 2003</b>
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</p><p>We now SET CONCAT_NULL_YIELDS_NULL OFF for odbc_mssql driver to be compat with
|
|
mssql driver.
|
|
</p><p>The property $emptyDate missing from connection class. Also changed 1903 to
|
|
constant (TIMESTAMP_FIRST_YEAR=100). Thx to Sebastiaan van Stijn.
|
|
</p><p>ADOdb speedup optimization - we now return all arrays by reference.
|
|
</p><p>Now DBDate() and DBTimeStamp() now accepts the string 'null' as a parameter.
|
|
Suggested by vincent.
|
|
</p><p>Added GetArray() to connection class.
|
|
</p><p>Added not_null check in informix metacolumns().
|
|
</p><p>Connection parameters for postgresql did not work correctly when port was defined.
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|
</p><p>DB2 is now a tested driver, making adodb 100% compatible. Extensive changes
|
|
to odbc driver for DB2, including implementing serverinfo() and SQLDate(), switching
|
|
to SQL_CUR_USE_ODBC as the cursor mode, and lastAffectedRows and SelectLimit()
|
|
fixes.
|
|
</p><p>The odbc driver's FetchField() field names did not obey ADODB_ASSOC_CASE. Fixed.
|
|
</p><p>Some bugs in adodb_backtrace() fixed.
|
|
</p><p>Added "INT IDENTITY" type to adorecordset::MetaType() to support odbc_mssql
|
|
properly.
|
|
</p><p>MetaColumns() for oci8, mssql, odbc revised to support scale. Also minor revisions
|
|
to odbc MetaColumns() for vfp and db2 compat.
|
|
</p><p>Added unsigned support to mysql datadict class. Thx to iamsure.
|
|
</p><p>Infinite loop in mssql MoveNext() fixed when ADODB_FETCH_ASSOC used. Thx to
|
|
Josh R, Night_Wulfe#hotmail.com.
|
|
</p><p>ChangeTableSQL contributed by Florian Buzin.
|
|
</p><p>The odbc_mssql driver now sets CONCAT_NULL_YIELDS_NULL OFF for compat with
|
|
mssql driver.
|
|
</p><hr>
|
|
<p><strong>0.10 Sept 9 2000</strong> First release
|
|
</p><h3><strong>Old change log history moved to <a href="old-changelog.htm">old-changelog.htm</a>.
|
|
</strong></h3>
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<p> </p>
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<p>
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</p></body></html>
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