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| <title>12. Microsoft SQL Server</title><link rel="stylesheet" href="css/docbook.css" type="text/css"><meta name="generator" content="DocBook XSL Stylesheets V1.72.0"><link rel="start" href="manual.html" title="Apache OpenJPA User's Guide"><link rel="up" href="supported_databases.html" title="Appendix 2. Supported Databases"><link rel="prev" href="dbsupport_access.html" title="11. Microsoft Access"><link rel="next" href="dbsupport_foxpro.html" title="13. Microsoft FoxPro"></head><body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center">12. |
| Microsoft SQL Server |
| </th></tr><tr><td width="20%" align="left"><a accesskey="p" href="dbsupport_access.html">Prev</a> </td><th width="60%" align="center">Appendix 2. |
| Supported Databases |
| </th><td width="20%" align="right"> <a accesskey="n" href="dbsupport_foxpro.html">Next</a></td></tr></table><hr></div><div class="section" lang="en"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a name="dbsupport_sqlserver"></a>12. |
| Microsoft SQL Server |
| </h2></div></div></div><div class="toc"><dl><dt><span class="section"><a href="dbsupport_sqlserver.html#dbsupport_sqlserver_issues">12.1. |
| Known issues with SQL Server |
| </a></span></dt></dl></div><div class="example"><a name="example_props_sqlserver"></a><p class="title"><b>Example 2.12. |
| Example properties for Microsoft SQLServer |
| </b></p><div class="example-contents"><pre class="programlisting"> |
| openjpa.ConnectionDriverName: com.microsoft.sqlserver.jdbc.SQLServerDriver |
| openjpa.ConnectionURL: \ |
| jdbc:sqlserver://SERVER_NAME:1433;DatabaseName=DB_NAME;selectMethod=cursor;sendStringParametersAsUnicode=false |
| </pre></div></div><br class="example-break"><div class="section" lang="en"><div class="titlepage"><div><div><h3 class="title"><a name="dbsupport_sqlserver_issues"></a>12.1. |
| Known issues with SQL Server |
| </h3></div></div></div><div class="itemizedlist"><ul type="disc"><li><p> |
| SQL Server date fields are accurate only to the nearest 3 milliseconds, |
| possibly resulting in precision loss in stored dates. |
| </p></li><li><p> |
| The ConnectionURL must always contain the " <code class="literal">selectMethod=cursor |
| </code> " string. |
| </p></li><li><p> |
| Adding <code class="literal">sendStringParametersAsUnicode=false</code> to the |
| ConnectionURL may significantly increase performance. |
| </p></li><li><p> |
| The Microsoft SQL Server driver only emulates batch updates. The DataDirect JDBC |
| driver has true support for batch updates, and may result in a significant |
| performance gain. |
| </p></li><li><p> |
| Floats and doubles may lose precision when stored. |
| </p></li><li><p> |
| <code class="literal">TEXT</code> columns cannot be used in queries. |
| </p></li><li><p> |
| When using a SQL Server instance that has been configured to be case-sensitive |
| in schema names, you need to set the "schemaCase=preserve" parameter in the |
| <a href="ref_guide_conf_jdbc.html#openjpa.jdbc.DBDictionary" title="6.2. openjpa.jdbc.DBDictionary">openjpa.jdbc.DBDictionary</a> |
| property. |
| </p></li><li><p> |
| SQL Server 2005 does not support native sequences. If you would like to use |
| generated values with SQL Server you should use GenerationType.IDENTITY, |
| GenerationType.TABLE, or GenerationType.AUTO. |
| </p></li></ul></div></div></div><div class="navfooter"><hr><table width="100%" summary="Navigation footer"><tr><td width="40%" align="left"><a accesskey="p" href="dbsupport_access.html">Prev</a> </td><td width="20%" align="center"><a accesskey="u" href="supported_databases.html">Up</a></td><td width="40%" align="right"> <a accesskey="n" href="dbsupport_foxpro.html">Next</a></td></tr><tr><td width="40%" align="left" valign="top">11. |
| Microsoft Access |
| </td><td width="20%" align="center"><a accesskey="h" href="manual.html">Home</a></td><td width="40%" align="right" valign="top"> 13. |
| Microsoft FoxPro |
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