61 lines
4.5 KiB
HTML
61 lines
4.5 KiB
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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<meta name="DC.Type" content="reference" />
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<meta name="DC.Title" content="Application requester driver programs" />
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<meta name="abstract" content="To complement database access provided by products that implement DRDA, DB2 UDB for iSeries provides an interface for writing exit programs on a DB2 UDB for iSeries application requester to process SQL requests. Such an exit program is called an application requester driver." />
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<meta name="description" content="To complement database access provided by products that implement DRDA, DB2 UDB for iSeries provides an interface for writing exit programs on a DB2 UDB for iSeries application requester to process SQL requests. Such an exit program is called an application requester driver." />
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<meta name="DC.subject" content="ARD (application requester driver) programs, application requester driver (ARD) programs, package creation, running statements, package, creating, effect of ARD programs, connection management, ARD programs" />
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<meta name="keywords" content="ARD (application requester driver) programs, application requester driver (ARD) programs, package creation, running statements, package, creating, effect of ARD programs, connection management, ARD programs" />
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<meta name="DC.Relation" scheme="URI" content="rbafydrda.htm" />
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<meta name="copyright" content="(C) Copyright IBM Corporation 1998, 2006" />
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<meta name="DC.Rights.Owner" content="(C) Copyright IBM Corporation 1998, 2006" />
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<title>Application requester driver programs</title>
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</head>
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<body id="rbafyardpgmex"><a name="rbafyardpgmex"><!-- --></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">Application requester driver programs</h1>
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<div><p>To complement database access provided by products that implement DRDA<sup>®</sup>, <span class="keyword">DB2<sup>®</sup> UDB for iSeries™</span> provides an interface for writing
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exit programs on a <span class="keyword">DB2 UDB for iSeries</span> application
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requester to process SQL requests. Such an exit program is called an <dfn class="term">application
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requester driver</dfn>.</p>
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<div class="section"><p> The server calls the ARD program during the following operations:</p>
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<ul><li>During package creation performed using the CRTSQLPKG or CRTSQLxxx commands,
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when the relational database (RDB) parameter matches the RDB name corresponding
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to the ARD program.</li>
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<li>Processing of SQL statements when the current connection is to an RDB
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name corresponding to the ARD program.</li>
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</ul>
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</div>
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<div class="section"><p>These calls allow the ARD program to pass the SQL statements and
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information about the statements to a remote relational database and return
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results back to the system. The system then returns the results to the application
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or the user. Access to relational databases accessed by ARD programs appears
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like access to DRDA application
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servers in the unlike environment. However, not all DRDA function is supported in the ARD environment.
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Examples of function not supported are Large objects (LOBs) and long passwords
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(passphrases).</p>
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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="rbafydrda.htm" title="A distributed relational database consists of a set of SQL objects that are spread across interconnected computer systems.">Distributed relational database function and SQL</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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