202 lines
9.5 KiB
HTML
202 lines
9.5 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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<meta name="DC.Type" content="reference" />
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<meta name="DC.Title" content="Use more than one field to join files (example 2)" />
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<meta name="abstract" content="You can specify more than one join field to join a pair of files. This example shows the fields in the logical file and the two physical files." />
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<meta name="description" content="You can specify more than one join field to join a pair of files. This example shows the fields in the logical file and the two physical files." />
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<meta name="DC.subject" content="example, using, more than one field to join files" />
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<meta name="keywords" content="example, using, more than one field to join files" />
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<meta name="DC.Relation" scheme="URI" content="rbafojnlof.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="rbafoljoin" />
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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>Use more than one field to join files (example 2)</title>
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</head>
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<body id="rbafoljoin"><a name="rbafoljoin"><!-- --></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">Use more than one field to join files (example 2)</h1>
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<div><p>You can specify more than one join field to join a pair of files.
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This example shows the fields in the logical file and the two physical files.</p>
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<div class="section"><br /><img src="rbafo521.gif" alt="Logical file and two physical files" /><br /></div>
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<div class="section"><p>The join logical file (JLF) has fields <em>Part number</em>, <em>Color</em>, <em>Price</em>,
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and <em>Quantity on hand</em>. Physical file 1 (PF1) has <em>Part number</em>, <em>Color</em>, <em>Price</em>,
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and <em>Vendor</em>, while physical file 2 (PF2) has <em>Part number</em>, <em>Color</em>, <em>Quantity
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on hand</em>, and <em>Warehouse</em>. The data description specifications (DDS)
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for these files are shown as follows:</p>
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</div>
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<div class="example"> <pre><strong>JLF</strong>
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|...+....1....+....2....+....3....+....4....+....5....+....6....+....7....+....8
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A R JOINREC JFILE(PF1 PF2)
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A J JOIN(PF1 PF2)
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A JFLD(PTNBR PTNBR)
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A JFLD(COLOR COLOR)
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A PTNBR JREF(PF1)
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A COLOR JREF(PF1)
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A PRICE
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A QUANTOH
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A
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<strong>PF1</strong>
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|...+....1....+....2....+....3....+....4....+....5....+....6....+....7....+....8
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A R REC1
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A PTNBR 4
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A COLOR 20
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A PRICE 7 2
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A VENDOR 40
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A
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<strong>PF2</strong>
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|...+....1....+....2....+....3....+....4....+....5....+....6....+....7....+....8
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A R REC2
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A PTNBR 4
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A COLOR 20
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A QUANTOH 5 0
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A WAREHSE 30
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A</pre>
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</div>
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<div class="section"><p>Assume that the physical files have the following records.</p>
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<div class="tablenoborder"><table cellpadding="4" cellspacing="0" summary="" width="100%" frame="border" border="1" rules="all"><caption>Table 1. Physical file 1 (PF1)</caption><thead align="left"><tr valign="bottom"><th valign="bottom" id="d0e85">Part number</th>
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<th valign="bottom" id="d0e87">Color</th>
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<th valign="bottom" id="d0e89">Price</th>
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<th valign="bottom" id="d0e91">Vendor</th>
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</tr>
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</thead>
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<tbody><tr><td valign="top" headers="d0e85 ">100</td>
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<td valign="top" headers="d0e87 ">Black</td>
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<td valign="top" headers="d0e89 ">22.50</td>
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<td valign="top" headers="d0e91 ">ABC Corp.</td>
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</tr>
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<tr><td valign="top" headers="d0e85 ">100</td>
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<td valign="top" headers="d0e87 ">White</td>
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<td valign="top" headers="d0e89 ">20.00</td>
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<td valign="top" headers="d0e91 ">Ajax Inc.</td>
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</tr>
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<tr><td valign="top" headers="d0e85 ">120</td>
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<td valign="top" headers="d0e87 ">Yellow</td>
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<td valign="top" headers="d0e89 ">3.75</td>
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<td valign="top" headers="d0e91 ">ABC Corp.</td>
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</tr>
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<tr><td valign="top" headers="d0e85 ">187</td>
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<td valign="top" headers="d0e87 ">Green</td>
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<td valign="top" headers="d0e89 "><strong>110.95</strong></td>
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<td valign="top" headers="d0e91 ">ABC Corp.</td>
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</tr>
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<tr><td valign="top" headers="d0e85 ">187</td>
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<td valign="top" headers="d0e87 ">Red</td>
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<td valign="top" headers="d0e89 "><strong>110.50</strong></td>
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<td valign="top" headers="d0e91 ">ABC Corp.</td>
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</tr>
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<tr><td valign="top" headers="d0e85 ">190</td>
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<td valign="top" headers="d0e87 ">Blue</td>
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<td valign="top" headers="d0e89 ">40.00</td>
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<td valign="top" headers="d0e91 ">Ajax Inc. </td>
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</tr>
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</tbody>
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</table>
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</div>
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<div class="tablenoborder"><table cellpadding="4" cellspacing="0" summary="" width="100%" frame="border" border="1" rules="all"><caption>Table 2. Physical file 2 (PF2)</caption><thead align="left"><tr valign="bottom"><th valign="bottom" id="d0e160">Part number</th>
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<th valign="bottom" id="d0e162">Color</th>
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<th valign="bottom" id="d0e164">Quantity on hand</th>
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<th valign="bottom" id="d0e166">Warehouse</th>
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</tr>
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</thead>
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<tbody><tr><td valign="top" headers="d0e160 ">100</td>
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<td valign="top" headers="d0e162 ">Black</td>
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<td valign="top" headers="d0e164 ">23</td>
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<td valign="top" headers="d0e166 ">ABC Corp.</td>
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</tr>
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<tr><td valign="top" headers="d0e160 ">100</td>
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<td valign="top" headers="d0e162 ">White</td>
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<td valign="top" headers="d0e164 ">15</td>
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<td valign="top" headers="d0e166 ">Ajax Inc.</td>
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</tr>
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<tr><td valign="top" headers="d0e160 ">120</td>
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<td valign="top" headers="d0e162 ">Yellow</td>
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<td valign="top" headers="d0e164 ">102</td>
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<td valign="top" headers="d0e166 ">ABC Corp.</td>
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</tr>
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<tr><td valign="top" headers="d0e160 ">187</td>
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<td valign="top" headers="d0e162 ">Green</td>
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<td valign="top" headers="d0e164 "><strong>0</strong></td>
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<td valign="top" headers="d0e166 ">ABC Corp.</td>
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</tr>
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<tr><td valign="top" headers="d0e160 ">187</td>
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<td valign="top" headers="d0e162 ">Red</td>
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<td valign="top" headers="d0e164 "><strong>2</strong></td>
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<td valign="top" headers="d0e166 ">ABC Corp.</td>
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</tr>
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<tr><td valign="top" headers="d0e160 ">190</td>
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<td valign="top" headers="d0e162 ">Blue</td>
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<td valign="top" headers="d0e164 "><strong>2</strong></td>
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<td valign="top" headers="d0e166 ">Ajax Inc. </td>
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</tr>
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</tbody>
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</table>
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</div>
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</div>
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<div class="section"><p>If the file is processed sequentially, the program receives the
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following records.</p>
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<div class="tablenoborder"><table cellpadding="4" cellspacing="0" summary="" width="100%" frame="border" border="1" rules="all"><caption>Table 3. Join logical file (JLF)</caption><thead align="left"><tr valign="bottom"><th valign="bottom" id="d0e239">Part number</th>
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<th valign="bottom" id="d0e241">Color</th>
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<th valign="bottom" id="d0e243">Price</th>
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<th valign="bottom" id="d0e245">Quantity on hand</th>
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</tr>
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</thead>
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<tbody><tr><td valign="top" headers="d0e239 ">100</td>
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<td valign="top" headers="d0e241 ">Black</td>
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<td valign="top" headers="d0e243 ">22.50</td>
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<td valign="top" headers="d0e245 ">23</td>
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</tr>
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<tr><td valign="top" headers="d0e239 ">100</td>
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<td valign="top" headers="d0e241 ">White</td>
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<td valign="top" headers="d0e243 ">20.00</td>
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<td valign="top" headers="d0e245 ">15</td>
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</tr>
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<tr><td valign="top" headers="d0e239 ">120</td>
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<td valign="top" headers="d0e241 ">Yellow</td>
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<td valign="top" headers="d0e243 ">3.75</td>
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<td valign="top" headers="d0e245 ">102</td>
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</tr>
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<tr><td valign="top" headers="d0e239 ">187</td>
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<td valign="top" headers="d0e241 ">Green</td>
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<td valign="top" headers="d0e243 "><strong>110.95</strong></td>
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<td valign="top" headers="d0e245 "><strong>0</strong></td>
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</tr>
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<tr><td valign="top" headers="d0e239 ">187</td>
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<td valign="top" headers="d0e241 ">Red</td>
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<td valign="top" headers="d0e243 "><strong>110.50</strong></td>
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<td valign="top" headers="d0e245 "><strong>2</strong></td>
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</tr>
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</tbody>
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</table>
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</div>
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<div class="note"><span class="notetitle">Note:</span> No record for part number 190, color blue, is available to the
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program, because a match was not found on both fields in the secondary file.
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Because JDFTVAL was not specified, no record is returned.</div>
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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="rbafojnlof.htm" title="These topics provide examples to illustrate how to set up a join logical file. Performance, integrity, and a summary of rules for join logical files are also included.">Set up a join logical file</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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