134 lines
7.6 KiB
HTML
134 lines
7.6 KiB
HTML
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<meta name="DC.Title" content="UNSIGNED (Unsigned) keyword for physical and logical files" />
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<meta name="abstract" content="Use this key field-level keyword to specify that numeric fields are sequenced as a string of unsigned binary data. Character, date, time, timestamp, and hexadecimal fields default to unsigned values." />
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<title>Physical and Logical Files, UNSIGNED</title>
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</head>
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<body id="tdunsig"><a name="tdunsig"><!-- --></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">UNSIGNED (Unsigned) keyword for physical and logical files</h1>
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<div><p>Use this key field-level keyword to specify that numeric fields
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are sequenced as a string of unsigned binary data. Character, date, time,
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timestamp, and hexadecimal fields default to unsigned values.</p>
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<div class="section"><p>This keyword has no parameters.</p>
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<p>UNSIGNED is valid on key
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fields in physical or logical files regardless of the data type of the key
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field. The UNSIGNED keyword is not allowed with the SIGNED and ABSVAL keywords.</p>
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<div class="p">The
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UNSIGNED keyword will be the default in the following situations: <ul><li>When you specify ALTSEQ at the file level for a zoned key field</li>
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<li>When you specify ZONE or DIGIT for a zoned key field</li>
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<li>For all character and hexadecimal fields</li>
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</ul>
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</div>
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<div class="note"><span class="notetitle">Note:</span> You can specify UNSIGNED for floating point fields, but the
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results cannot be predicted.</div>
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<p>The following figure shows six records
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with a zoned decimal key field:</p>
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<div class="tablenoborder"><table cellpadding="4" cellspacing="0" summary="" width="100%" frame="void" border="0" rules="none"><thead align="left"><tr><th valign="top" width="33.33333333333333%" id="d0e43">Record</th>
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<th valign="top" width="33.33333333333333%" id="d0e45">Numeric key field (zoned decimal)</th>
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<th valign="top" width="33.33333333333333%" id="d0e47">Hexadecimal representation</th>
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</tr>
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</thead>
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<tbody><tr><td valign="top" width="33.33333333333333%" headers="d0e43 ">1</td>
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<td valign="top" width="33.33333333333333%" headers="d0e45 ">98</td>
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<td valign="top" width="33.33333333333333%" headers="d0e47 ">F9F8</td>
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</tr>
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<tr><td valign="top" width="33.33333333333333%" headers="d0e43 ">2</td>
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<td valign="top" width="33.33333333333333%" headers="d0e45 ">00</td>
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<td valign="top" width="33.33333333333333%" headers="d0e47 ">F0F0</td>
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</tr>
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<tr><td valign="top" width="33.33333333333333%" headers="d0e43 ">3</td>
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<td valign="top" width="33.33333333333333%" headers="d0e45 ">98-</td>
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<td valign="top" width="33.33333333333333%" headers="d0e47 ">F9D8</td>
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</tr>
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<tr><td valign="top" width="33.33333333333333%" headers="d0e43 ">4</td>
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<td valign="top" width="33.33333333333333%" headers="d0e45 ">97</td>
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<td valign="top" width="33.33333333333333%" headers="d0e47 ">F9F7</td>
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</tr>
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<tr><td valign="top" width="33.33333333333333%" headers="d0e43 ">5</td>
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<td valign="top" width="33.33333333333333%" headers="d0e45 ">20</td>
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<td valign="top" width="33.33333333333333%" headers="d0e47 ">F2F0</td>
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</tr>
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<tr><td valign="top" width="33.33333333333333%" headers="d0e43 ">6</td>
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<td valign="top" width="33.33333333333333%" headers="d0e45 ">99</td>
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<td valign="top" width="33.33333333333333%" headers="d0e47 ">F9F9</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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<p>If you specify UNSIGNED, the records are sequenced in this order:</p>
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<div class="tablenoborder"><table cellpadding="4" cellspacing="0" summary="" width="100%" frame="void" border="0" rules="none"><thead align="left"><tr><th valign="top" width="33.33333333333333%" id="d0e101">Record</th>
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<th valign="top" width="33.33333333333333%" id="d0e103">Numeric key field (zoned decimal)</th>
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<th valign="top" width="33.33333333333333%" id="d0e105">Hexadecimal representation</th>
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</tr>
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</thead>
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<tbody><tr><td valign="top" width="33.33333333333333%" headers="d0e101 ">2</td>
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<td valign="top" width="33.33333333333333%" headers="d0e103 ">00</td>
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<td valign="top" width="33.33333333333333%" headers="d0e105 ">F0F0</td>
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</tr>
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<tr><td valign="top" width="33.33333333333333%" headers="d0e101 ">5</td>
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<td valign="top" width="33.33333333333333%" headers="d0e103 ">20</td>
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<td valign="top" width="33.33333333333333%" headers="d0e105 ">F2F0</td>
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</tr>
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<tr><td valign="top" width="33.33333333333333%" headers="d0e101 ">3</td>
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<td valign="top" width="33.33333333333333%" headers="d0e103 ">98-</td>
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<td valign="top" width="33.33333333333333%" headers="d0e105 ">F9D8</td>
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</tr>
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<tr><td valign="top" width="33.33333333333333%" headers="d0e101 ">4</td>
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<td valign="top" width="33.33333333333333%" headers="d0e103 ">97</td>
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<td valign="top" width="33.33333333333333%" headers="d0e105 ">F9F7</td>
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</tr>
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<tr><td valign="top" width="33.33333333333333%" headers="d0e101 ">1</td>
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<td valign="top" width="33.33333333333333%" headers="d0e103 ">98</td>
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<td valign="top" width="33.33333333333333%" headers="d0e105 ">F9F8</td>
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</tr>
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<tr><td valign="top" width="33.33333333333333%" headers="d0e101 ">6</td>
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<td valign="top" width="33.33333333333333%" headers="d0e103 ">99</td>
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<td valign="top" width="33.33333333333333%" headers="d0e105 ">F9F9</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="example"><h4 class="sectiontitle">Example</h4><p>The following example shows how to specify
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the UNSIGNED keyword for a physical file.</p>
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<pre>|...+....1....+....2....+....3....+....4....+....5....+....6....+....7....+....8
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00010A R RECORDA
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00020A FLDA 7S 2
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00030A FLDB 5
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00040A K FLDA UNSIGNED
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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="rzakbmstlfkeyw.htm" title="This topic lists valid keyword entries for describing physical and logical files. They are typed in positions 45 through 80 (functions).">Keyword entries for physical and logical files (positions 45 through 80)</a></div>
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</div>
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</div>
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</body>
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</html> |