46 lines
3.0 KiB
HTML
46 lines
3.0 KiB
HTML
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<meta name="DC.Title" content="Determining what column statistics exist" />
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<meta name="abstract" content="You can determine what column statistics exist in a couple of ways." />
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<title>Determining what column statistics exist</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">Determining what column statistics exist</h1>
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<div><p>You can determine what column statistics exist in a couple of ways.</p>
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<div class="section"><p>The first is to view statistics by using iSeries™ Navigator. Right-click a table
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or alias and select <span class="uicontrol">Statistic Data</span>. Another way is
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to create a user-defined table function and call that function from an SQL
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statement or stored procedure.</p>
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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="statsmanager.htm" title="As stated earlier, the collection of statistics is handled by a separate component called the Statistics Manager. Statistical information can be used by the query optimizer to determine the best access plan for a query. Since the query optimizer bases its choice of access plan on the statistical information found in the table, it is important that this information be current.">Collecting statistics with the Statistics Manager</a></div>
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