54 lines
3.3 KiB
HTML
54 lines
3.3 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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<head>
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<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
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<meta name="security" content="public" />
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<meta name="Robots" content="index,follow" />
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<meta http-equiv="PICS-Label" content='(PICS-1.1 "http://www.icra.org/ratingsv02.html" l gen true r (cz 1 lz 1 nz 1 oz 1 vz 1) "http://www.rsac.org/ratingsv01.html" l gen true r (n 0 s 0 v 0 l 0) "http://www.classify.org/safesurf/" l gen true r (SS~~000 1))' />
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<meta name="DC.Type" content="reference" />
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<meta name="DC.Title" content="Update a table with rows from another table" />
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<meta name="abstract" content="It is also possible to update an entire row in one table with values from a row in another table." />
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<meta name="description" content="It is also possible to update an entire row in one table with values from a row in another table." />
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<meta name="DC.subject" content="examples, UPDATE statement, using SELECT, example" />
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<meta name="keywords" content="examples, UPDATE statement, using SELECT, example" />
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<meta name="DC.Relation" scheme="URI" content="rbafyupdate.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.Format" content="XHTML" />
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<meta name="DC.Identifier" content="rbafyupdatediftbl" />
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<meta name="DC.Language" content="en-us" />
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<!-- All rights reserved. Licensed Materials Property of IBM -->
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<!-- US Government Users Restricted Rights -->
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<!-- Use, duplication or disclosure restricted by -->
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<!-- GSA ADP Schedule Contract with IBM Corp. -->
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<link rel="stylesheet" type="text/css" href="./ibmdita.css" />
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<link rel="stylesheet" type="text/css" href="./ic.css" />
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<title>Update a table with rows from another table</title>
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</head>
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<body id="rbafyupdatediftbl"><a name="rbafyupdatediftbl"><!-- --></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">Update a table with rows from another table</h1>
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<div><p>It is also possible to update an entire row in one table with values
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from a row in another table.</p>
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<div class="section"><p>Suppose there is a master class schedule table that needs to be
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updated with changes that have been made in a copy of the table. The changes
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are made to the work copy and merged into the master table every night. The
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two tables have exactly the same columns and one column, CLASS_CODE, is a
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unique key column. </p>
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<pre><strong>UPDATE</strong> CL_SCHED
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<strong>SET</strong> ROW =
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(<strong>SELECT</strong> * <strong>FROM</strong> MYCOPY
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<strong>WHERE</strong> CL_SCHED.CLASS_CODE = MYCOPY.CLASS_CODE)</pre>
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<p>This
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update will update all of the rows in CL_SCHED with the values from MYCOPY.</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="rbafyupdate.htm" title="This topic shows the basic SQL statement and clauses that update data into tables and views. To change the data in a table, use the UPDATE statement.">Change data in a table using the UPDATE statement</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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