55 lines
3.6 KiB
HTML
55 lines
3.6 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 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="Key field updates" />
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<meta name="abstract" content="An iSeries program is allowed to change any part of a data record including key fields." />
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<meta name="description" content="An iSeries program is allowed to change any part of a data record including key fields." />
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<meta name="DC.subject" content="key field update, ILE COBOL programming language, restrictions, ILE RPG programming language, key field updates" />
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<meta name="keywords" content="key field update, ILE COBOL programming language, restrictions, ILE RPG programming language, key field updates" />
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<meta name="DC.Relation" scheme="URI" content="rbae5amc.htm" />
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<meta name="copyright" content="(C) Copyright IBM Corporation 1999, 2006" />
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<meta name="DC.Rights.Owner" content="(C) Copyright IBM Corporation 1999, 2006" />
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<meta name="DC.Format" content="XHTML" />
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<meta name="DC.Identifier" content="rbae5keyfield" />
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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>Key field updates</title>
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</head>
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<body id="rbae5keyfield"><a name="rbae5keyfield"><!-- --></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">Key field updates</h1>
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<div><p>An <span class="keyword">iSeries™</span> program
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is allowed to change any part of a data record including key fields. </p>
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<div class="section"><p>The exception to this is an ILE COBOL program because
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the ILE COBOL language does not allow key field changes. A <span class="keyword">System/36™</span> program
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cannot change primary key fields in a record, regardless of the access method
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specified when the file is opened. Logical file key fields can be changed
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under some circumstances, but primary key fields can never be changed.</p>
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</div>
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<div class="section"><p>This means that an ILE RPG program, for example, that routinely
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changes key fields in a local keyed file might fail when it is redirected
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to a remote keyed file on a <span class="keyword">System/36</span> (or
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other system with similar restrictions). Several different errors might be
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returned by the DDM target, depending on the access method or access path
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being used when the key field change is attempted.</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="rbae5amc.htm" title="Access methods control what subsets of functions can be performed after a particular remote file is opened. This might mean that an iSeries program, or a group of programs sharing a non-iSeries file, cannot do all the same operations that are possible using a file that is on the local iSeries server.">Work with access methods for DDM</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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