52 lines
3.7 KiB
HTML
52 lines
3.7 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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<meta name="DC.Type" content="concept" />
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<meta name="DC.Title" content="Processing of the DSTDTA and ALWCPYDTA parameters with DB2 Multisystem" />
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<meta name="abstract" content="The allow copy data (ALWCPYDTA) parameter can change the value specified for the distribute data (DSTDTA) parameter of the Override Database File (OVRDBF) command." />
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<meta name="description" content="The allow copy data (ALWCPYDTA) parameter can change the value specified for the distribute data (DSTDTA) parameter of the Override Database File (OVRDBF) command." />
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<meta name="DC.subject" content="allow copy data (ALWCPYDTA) parameter, processing, ALWCPYDTA (allow copy data) parameter, ALWCPYDTA (allow copy data) parameter, distribute data (DSTDTA) parameter, DSTDTA (distribute data) parameter" />
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<meta name="keywords" content="allow copy data (ALWCPYDTA) parameter, processing, ALWCPYDTA (allow copy data) parameter, ALWCPYDTA (allow copy data) parameter, distribute data (DSTDTA) parameter, DSTDTA (distribute data) parameter" />
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<meta name="DC.Relation" scheme="URI" content="qqp.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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<meta name="DC.Identifier" content="dstdta" />
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<title>Processing of the DSTDTA and ALWCPYDTA parameters with DB2 Multisystem</title>
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</head>
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<body id="dstdta"><a name="dstdta"><!-- --></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">Processing of the DSTDTA and ALWCPYDTA parameters with DB2<sup>®</sup> Multisystem</h1>
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<div><p>The allow copy data (ALWCPYDTA) parameter can change the value
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specified for the distribute data (DSTDTA) parameter of the Override Database
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File (OVRDBF) command.</p>
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<div class="p">If you specified to use live data (DSTDTA(*CURRENT)) on the override command,
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either of the following items is true: <ul><li>A temporary copy was required and ALWCPYDTA(*YES) was specified</li>
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<li>A temporary copy was chosen for better performance and ALWCPYDTA(*OPTIMIZE)
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was specified</li>
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</ul>
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then DSTDTA is changed to DSTDTA(*BUFFERED).</div>
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<p>If DSTDTA(*BUFFERED) is not acceptable to you and the query does not require
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a temporary copy, then you need to specify ALWCPYDTA(*YES) to keep DSTDTA(*CURRENT)
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in effect.</p>
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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="qqp.htm" title="This topic provides you with some guidelines for designing queries so that they use query resources more efficiently when you run queries that use distributed files.">Query design for performance with DB2 Multisystem</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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