42 lines
3.0 KiB
HTML
42 lines
3.0 KiB
HTML
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<meta name="DC.Title" content="Details: Avoid constraint cycles" />
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<meta name="abstract" content="A constraint cycle is a sequence of constraint relationships in which a descendent of a parent file becomes a parent to the original parent file. You can use constraint cycles in a DB2 Universal Database for iSeries database, however, you should avoid using them." />
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<meta name="description" content="A constraint cycle is a sequence of constraint relationships in which a descendent of a parent file becomes a parent to the original parent file. You can use constraint cycles in a DB2 Universal Database for iSeries database, however, you should avoid using them." />
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<title>Details: Avoid constraint cycles</title>
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<body id="rbaforzahfrcg"><a name="rbaforzahfrcg"><!-- --></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">Details: Avoid constraint cycles</h1>
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<div><p>A <em>constraint cycle</em> is a sequence of constraint relationships
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in which a descendent of a parent file becomes a parent to the original parent
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file. You can use constraint cycles in a DB2 Universal Database™ for iSeries™ database,
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however, you should avoid using them.</p>
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<div class="parentlink"><strong>Parent topic:</strong> <a href="rbaforzahfrce.htm" title="You can add referential constraints on physical files with no more than one member. A referential constraint is a file-level attribute; therefore, you can create the constraint before the member exists.">Add referential constraints</a></div>
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