86 lines
4.9 KiB
HTML
86 lines
4.9 KiB
HTML
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<?xml version="1.0" encoding="UTF-8"?>
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<!DOCTYPE html
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PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
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<html lang="en-us" xml:lang="en-us">
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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="security" content="public" />
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<meta name="Robots" content="index,follow" />
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<meta http-equiv="PICS-Label" content='(PICS-1.1 "http://www.icra.org/ratingsv02.html" l gen true r (cz 1 lz 1 nz 1 oz 1 vz 1) "http://www.rsac.org/ratingsv01.html" l gen true r (n 0 s 0 v 0 l 0) "http://www.classify.org/safesurf/" l gen true r (SS~~000 1))' />
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<meta name="DC.Type" content="reference" />
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<meta name="DC.Title" content="Catalog functions" />
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<meta name="abstract" content="Catalog functions return information about the DB2 UDB for iSeries database with which you are working." />
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<meta name="description" content="Catalog functions return information about the DB2 UDB for iSeries database with which you are working." />
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<meta name="DC.Relation" scheme="URI" content="rzaikodbcperfconsd.htm" />
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<meta name="copyright" content="(C) Copyright IBM Corporation 1999, 2006" />
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<meta name="DC.Rights.Owner" content="(C) Copyright IBM Corporation 1999, 2006" />
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<meta name="DC.Format" content="XHTML" />
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<meta name="DC.Identifier" content="odbccatalogfunc" />
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<meta name="DC.Language" content="en-us" />
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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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<link rel="stylesheet" type="text/css" href="./ibmdita.css" />
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<link rel="stylesheet" type="text/css" href="./ic.css" />
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<title>Catalog functions</title>
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</head>
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<body id="odbccatalogfunc"><a name="odbccatalogfunc"><!-- --></a>
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<!-- Java sync-link --><script language="Javascript" src="../rzahg/synch.js" type="text/javascript"></script>
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<h1 class="topictitle1">Catalog functions</h1>
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<div><p>Catalog functions return information about the DB2<sup>®</sup> UDB for iSeries™ database
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with which you are working.</p>
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<div class="section"><p>To process ODBC <strong>SQLTables</strong> requests, logical files are built
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over the server cross reference file QADBXREF in library QSYS. QADBXREF is
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a database file for database-maintained cross-reference information that is
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part of the dictionary function for the server.</p>
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</div>
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<div class="section"><p>The following are the actions for <strong>SQLTables</strong> when <strong>TableType</strong> is
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set to the following: </p>
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<dl><dt class="dlterm">NULL</dt>
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<dd>Selects all LOGICAL and PHYSICAL files and <span class="keyword">SQL</span> TABLES
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and VIEWS.</dd>
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<dt class="dlterm">TABLE</dt>
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<dd>Selects all PHYSICAL files, and <span class="keyword">SQL</span> TABLES
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that are not server files (cross reference or data dictionary).</dd>
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<dt class="dlterm">VIEW</dt>
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<dd>Selects all LOGICAL files and <span class="keyword">SQL</span> VIEWS
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that are not server files (cross reference or data dictionary).</dd>
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<dt class="dlterm">SYSTEM TABLE</dt>
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<dd>Selects all PHYSICAL and LOGICAL files and <span class="keyword">SQL</span> VIEWS
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that are either server files or data dictionary files.</dd>
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<dt class="dlterm">TABLE, VIEW</dt>
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<dd>Selects all LOGICAL and PHYSICAL files and all <span class="keyword">SQL</span> TABLES
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and VIEWS that are not server files or data dictionary files.</dd>
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</dl>
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</div>
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<div class="section"><p>Non-relational files (files with more than one format) are not
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selected. Also not selected are indexes, flat files and IDDU-defined files.</p>
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</div>
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<div class="section"><p>The result sets returned by the catalog functions are ordered
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by table type. In addition to the TABLE and VIEW types, the iSeries server
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has the data source-specific type identifiers of PHYSICAL and LOGICAL files.
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The PHYSICAL type is handled as a TABLE, and the LOGICAL type is handled as
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a VIEW.</p>
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</div>
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<div class="section"><p>To process ODBC <strong>SQLColumns</strong> requests, a logical file is
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built over the server cross-reference file QADBIFLD in the QSYS library. This
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logical file selects all relational database files except for indexes. QADBIFLD
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is a database file for database-maintained cross-reference information that
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is part of the dictionary function for the server. Specifically, this includes
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database file column and field information.</p>
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</div>
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<div class="section"> <dl><dt class="dlterm">For additional information:</dt>
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<dd>The Appendix of the <em>SQL Reference</em> book contains additional information.
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View an HTML online version of the book, or print a PDF version, from the <a href="../db2/rbafzmst02.htm">DB2
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Universal Database™ for iSeries SQL Reference </a> iSeries Information Center topic.</dd>
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</dl>
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</div>
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</div>
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<div>
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<div class="familylinks">
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<div class="parentlink"><strong>Parent topic:</strong> <a href="rzaikodbcperfconsd.htm" title="See any of the following ODBC performance topics.">iSeries Access for Windows ODBC performance</a></div>
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</div>
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</div>
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</body>
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</html>
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