95 lines
6.3 KiB
HTML
95 lines
6.3 KiB
HTML
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<title>Simple and multiple format logical files in DDS</title>
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</head>
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<body id="simpmult"><a name="simpmult"><!-- --></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">Simple and multiple format logical files in DDS</h1>
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<div><p>You must specify the PFILE keyword at the record level for simple
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and multiple format logical files. In a multiple format logical file, a record
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format can use only the fields common to all the physical files specified
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on the PFILE keyword for that record format.</p>
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<div class="section">Specify the entries in the following order to define a simple or
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multiple format logical file:</div>
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<ol><li><strong>Optional: </strong><span>File-level entries</span></li>
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<li><span>Record-level entries</span></li>
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<li><strong>Optional: </strong><span>Field-level entries</span></li>
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<li><strong>Optional: </strong><span>Key field-level entries</span></li>
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<li><strong>Optional: </strong><span>Select and omit-field level entries</span></li>
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</ol>
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<div class="section"> <p>Repeat steps 2 through 5 for each record format in the file.</p>
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<p>The
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following example shows a multiple format logical file coding example.</p>
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<pre>|...+....1....+....2....+....3....+....4....+....5....+....6....+....7....+....8
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00010A* LOGICAL FILE EXAMPLE
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00020A* INVENTORY FORMAT
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00030A R INVFMT PFILE(INVENTORY)
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00040A K ITEM
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00050A*
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00060A* ORDER FORMAT
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00070A R ORDFMT PFILE(ORDER)
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00080A TEXT('ORDER ANALYSIS')
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00090A ITEM
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00100A ORDER 10
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00110A SUPPLY +2
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00120A SHPDAT CONCAT(SHPMO SHPDA SHPYR)
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00130A QTY 5P RENAME(QTYDUE)
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00140A K ITEM
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00150A K SHPYR
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00160A K SHPMO
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00170A K SHPDA
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00180A O QTYDUE CMP(LT 1)
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00190A*
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00200A* ACCOUNTING FORMAT
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00210A R ACTFMT PFILE(ACCOUNTS)
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00220A FORMAT(ACCOUNTL)
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00230A K ITEM
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A</pre>
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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="ldef.htm" title="A logical file determines how data records are selected and defined when read by an application program. A logical file can be a simple, multiple format, or join logical file.">Define a logical file using DDS</a></div>
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</div>
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<div class="relconcepts"><strong>Related concepts</strong><br />
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<div><a href="logmultrecfmts.htm" title="When you specify more than one record format in a logical file, you must specify at least one key field for every record format in the logical file.">DDS logical files with more than one record format</a></div>
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</div>
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<div class="relref"><strong>Related reference</strong><br />
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<div><a href="rzakbmstlfpos.htm" title="The first 44 positions of the DDS form are called positional entries.">Positional entries for physical and logical files (positions 1 through 44)</a></div>
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<div><a href="lfname.htm" title="Use these positions to specify record or field names.">Name for physical and logical files (positions 19 through 28)</a></div>
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<div><a href="lleng.htm" title="Use these positions to specify the length of a physical or logical file field.">Length for physical and logical files (positions 30 through 34)</a></div>
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<div><a href="ldata.htm" title="For a physical file, use this position to specify the data type of the field within the database. Specify data type in a logical file only to override or change the data type of the corresponding field in the physical file on which this logical file is based.">Data type for physical and logical files (position 35)</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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