64 lines
4.1 KiB
HTML
64 lines
4.1 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="Example: Record format *VB" />
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<meta name="abstract" content="This is an example of record format *VB, which consists of graphics with explanations." />
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<meta name="description" content="This is an example of record format *VB, which consists of graphics with explanations." />
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<meta name="DC.Relation" scheme="URI" content="formd.htm" />
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<meta name="copyright" content="(C) Copyright IBM Corporation 2004, 2006" />
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<meta name="DC.Rights.Owner" content="(C) Copyright IBM Corporation 2004, 2006" />
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<meta name="DC.Format" content="XHTML" />
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<meta name="DC.Identifier" content="rbfvb" />
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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>Example: Record format *VB</title>
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</head>
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<body id="rbfvb"><a name="rbfvb"><!-- --></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">Example: Record format *VB</h1>
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<div><p><span>This is an example of record format *VB,
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which consists of graphics with explanations.</span></p>
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<div class="section"><p>Variable-length, blocked, unspanned (*VB).</p>
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</div>
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<div class="example"> <div class="fignone" id="rbfvb__rbahh510.eps"><a name="rbfvb__rbahh510.eps"><!-- --></a><span class="figcap">Figure 1. Variable-length, blocked, unspanned
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(*VB)</span><br /><img src="rbahh510.gif" alt="This diagram shows a VV
WW connected to Record A data. Below this, is XX YY, Record A and Record B.
The XX YY has a block 1 pointing at it. Below this is VV WW and a Record B
data." /><br /></div>
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</div>
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<div class="section"><p><var class="varname">XX</var> and <var class="varname">YY</var> make
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up the BDW. <var class="varname">XX</var> is the length of all records plus the length
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of the BDW (4 bytes). <var class="varname">YY</var> represents currently reserved
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fields and must be 00. <var class="varname">XX</var> should be the actual length of
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the data block that is written.</p>
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</div>
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<div class="example"> <div class="fignone" id="rbfvb__rbahh511.eps"><a name="rbfvb__rbahh511.eps"><!-- --></a><span class="figcap">Figure 2. Record A mapping</span><br /><img src="rbahh511.gif" alt="This diagram shows Record
A, which is comprised of a VV WW connected with a Record A data." /><br /></div>
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</div>
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<div class="section"><p>Record A has its own mapping by including the RDW. <var class="varname">VV</var> and <var class="varname">WW</var> make
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up the RDW. <var class="varname">VV</var> is the length of the record plus the length
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of the RDW (4 bytes). <var class="varname">WW</var> are currently reserved fields
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and must be 00. <var class="varname">VV</var> should be the actual length of record
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data A plus the length of the RDW (4 bytes). The actual length of the data
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block equals the sum of:</p>
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</div>
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<div class="section"> <ul><li>The <var class="varname">VV</var> value for ALL records.</li>
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<li>The length of the BDW (4 bytes).</li>
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</ul>
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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="formd.htm" title="Here are some examples of different record formats.">Record formats</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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