56 lines
3.8 KiB
HTML
56 lines
3.8 KiB
HTML
<?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="concept" />
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<meta name="DC.Title" content="Read by relative record number operation" />
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<meta name="abstract" content="For a keyed sequence access path, the relative record number can be used. This is the relative record number in the arrival sequence, even though the member opened has a keyed sequence access path." />
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<meta name="description" content="For a keyed sequence access path, the relative record number can be used. This is the relative record number in the arrival sequence, even though the member opened has a keyed sequence access path." />
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<meta name="DC.subject" content="reading, database record, methods, keyed sequence access path" />
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<meta name="keywords" content="reading, database record, methods, keyed sequence access path" />
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<meta name="DC.Relation" scheme="URI" content="rbafordbrk.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="rbafordroksap" />
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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>Read by relative record number operation</title>
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</head>
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<body id="rbafordroksap"><a name="rbafordroksap"><!-- --></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">Read by relative record number operation</h1>
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<div><p>For a keyed sequence access path, the relative record number can
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be used. This is the relative record number in the arrival sequence, even
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though the member opened has a keyed sequence access path.</p>
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<p>If the member contains multiple record formats, a record format name must
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be specified. In this case, you are requesting a record in the associated
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physical file member that matches the record format specified. If the member
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opened contains select/omit statements and the record identified by the relative
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record number is omitted from the keyed sequence access path, an error message
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is sent to your program and the operation is not allowed. After the operation
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is completed, the file is positioned to the key value in the keyed sequence
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access path that is contained in the physical record, which was identified
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by the relative record number. This operation also gets the record in the
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keyed sequence access path identified by the current file position plus or
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minus some number of records. (The CHAIN statement in the RPG/400<sup>®</sup> language
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and the READ statement in the COBOL/400<sup>®</sup> language are examples of
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this operation.)</p>
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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="rbafordbrk.htm" title="These read operations can be used with a keyed sequence access path to get database records.">Read database records using a keyed sequence access path</a></div>
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</div>
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</div>
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</body>
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</html> |