100 lines
5.0 KiB
HTML
100 lines
5.0 KiB
HTML
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<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
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<html>
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<head>
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<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
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<meta name="Copyright" content="Copyright (c) 2006 by IBM Corporation">
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<title>Database and File APIs</title>
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<!-- Begin Header Records ========================================== -->
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<!-- All rights reserved. Licensed Materials Property of IBM -->
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<!-- US Government Users Restricted Rights -->
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<!-- Use, duplication or disclosure restricted by -->
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<!-- GSA ADP Schedule Contract with IBM Corp. -->
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<!-- 031030 JETAYLOR manually updated Exit listings -->
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<!-- 031106 JETAYLOR manually updated Exit listings -->
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<!-- 031111 JETAYLOR replaced API and/or Exit listings with -->
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<!-- pagegenerator output from javascript array -->
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<link rel="stylesheet" type="text/css" href="../rzahg/ic.css">
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</head>
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<body>
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<!-- End Header Records ============================================ -->
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<!--Java sync-link ================================================= -->
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<script language="Javascript" src="../rzahg/synch.js" type="text/javascript">
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</script>
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<h2>Database and File APIs</h2>
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<p>The database and file APIs retrieve specific information about i5/OS<SUP>(TM)</SUP> files.
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These APIs also have the ability to get data and manipulate files.</p>
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<p>With the exception of QDBLDBR, QDFRTVFD, QSQPRCED, QDBSTRS, QDBSTDS,
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QDBSTUS, QDBSTCRS, QDBSTLS, QDBSTLDS, and QDBSTLRS, the database and file APIs
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work with files that are either local or remote. Local files are files that are
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on the server where the program is running. Remote files are files on a target
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(remote) system that are accessed using a distributed data management (DDM)
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file on a source (local) system. DDM files provide the information needed for a
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local system to locate a remote system and to access data in the remote
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system"s database files. The QDBLDBR, QDFRTVFD, QSQPRCED, QDBSTRS, QDBSTDS,
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QDBSTUS, QDBSTCRS, QDBSTLS, QDBSTLDS, and QDBSTLRS APIs work with local
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database files only.</p>
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<p>When you call these APIs from a high-level language (HLL) program, you must
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specify whether to use file override processing on your local or remote files.
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The QDBLDBR, QSQPRCED, and QDMRTVFO APIs, however, do not support
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overrides.</p>
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<p>Some of the database and file APIs return character values that have an
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associated coded character set identifier (CCSID). If the CCSID value for the
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job calling the API is not 65535, the character values are converted from their
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current CCSID to the CCSID of the job. This conversion may cause some data to
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be lost. The CCSID associated with the job is returned to the user. If the
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CCSID value for the job is 65535, no conversions are performed on the character
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values. The character value CCSID stored in the file object is returned to the
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user.</p>
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<p>The database and file APIs use the standard user space format for the lists
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of information they return. If you are not familiar with this format, see <a
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href="../apiref/usf.htm">User Space Format for List APIs</a> before using these APIs.</p>
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<p>The database and file APIs include:</p>
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<ul>
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<li><a href="file2.htm">File Information APIs</a></li>
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<li><a href="database1.htm">Database APIs</a></li>
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</ul>
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<p>A database exit program provides additional (user-written) functions for the
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database. The database and file exit programs are:</p><!-- ***** NOTE ***** Do not manually update text or links in this section. -->
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<!-- ***** NOTE ***** Do not manually update text or links in this section. -->
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<!-- Updates made in this section *will* be overlaid by automated tools -->
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<!-- Notify User Technologies of needed updates to be made in XML for API finder.-->
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<!--***************EXIT PROGRAM BEGIN PASTE***************-->
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<ul>
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<li><A HREF="xclicep.htm">CLI Connection</A> exit program is called by CLI through the registration facility before the connection is made to the relational database.</li>
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<li><A HREF="xclosedbf.htm">Close Database File</A> exit program is called when a process is trying to lock a file that is held by another process.</li>
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<li><A HREF="xopendbf.htm">Open Database File</A> exit program is called when a when a job is opening a database file.</li>
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<li><img src="delta.gif" alt="Start of change"><A HREF="xqrygovr.htm">Query Governor</A> exit program is called when a job is running a query
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and the estimated runtime or temporary storage usage has exceeded the user
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specified limits.<img src="deltaend.gif" alt="End of change"></li>
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<li><A HREF="qdbrplay.htm">Rename exit program</A></li>
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<li><A HREF="xsqlci.htm">SQL Client Integration</A> exit program enables SQL applications to access data managed by a database management system other than the OS\/400 relational database.</li>
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</ul>
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<!--***************EXIT PROGRAM END PASTE***************-->
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<hr>
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<center>
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<table cellpadding="2" cellspacing="2">
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<tr align="center">
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<td valign="middle" align="center"><a href="#Top_Of_Page">Top</a> | <a href=
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"aplist.htm">APIs by category</a></td>
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</tr>
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</table>
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</center>
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</body>
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</html>
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