47 lines
3.1 KiB
HTML
47 lines
3.1 KiB
HTML
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<meta name="DC.Title" content="Effects on database performance when using long object names" />
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<meta name="abstract" content="Long object names are converted internally to system object names when used in SQL statements. This conversion can have some performance impacts." />
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<meta name="description" content="Long object names are converted internally to system object names when used in SQL statements. This conversion can have some performance impacts." />
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<title>Effects on database performance when using long object names</title>
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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">Effects on database performance when using long object names</h1>
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<div><p>Long object names are converted internally to system object names
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when used in SQL statements. This conversion can have some performance impacts.</p>
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<div class="section"><p>Qualify the long object name with a library name,
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and the conversion to the short name happens at precompile time. In this case,
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there is no performance impact when the statement is executed. Otherwise,
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the conversion is done at execution time, and has a small performance impact.</p>
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<div class="familylinks">
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<div class="parentlink"><strong>Parent topic:</strong> <a href="genconsid.htm" title="As you code your applications, there are some general tips that can help you optimize performance.">General DB2 UDB for iSeries performance considerations</a></div>
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