167 lines
9.3 KiB
HTML
167 lines
9.3 KiB
HTML
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<meta name="abstract" content="Use this key field-level keyword to specify that when sequencing the values associated with this numeric key field, the operating system is to consider the signs of the values (negative versus positive values)." />
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<title>Physical and Logical Files, SIGNED</title>
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<body id="sign"><a name="sign"><!-- --></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">SIGNED (Signed) keyword for physical and logical files</h1>
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<div><p>Use this key field-level keyword to specify that when sequencing
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the values associated with this numeric key field, the operating system is
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to consider the signs of the values (negative versus positive values).</p>
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<div class="section"><p>This keyword has no parameters.</p>
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<p>The following example shows
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six records 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="d0e30">Record</th>
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<th valign="top" width="33.33333333333333%" id="d0e32">Numeric key field (zoned decimal)</th>
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<th valign="top" width="33.33333333333333%" id="d0e34">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="d0e30 ">1</td>
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<td valign="top" width="33.33333333333333%" headers="d0e32 ">98</td>
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<td valign="top" width="33.33333333333333%" headers="d0e34 ">F9F8</td>
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</tr>
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<tr><td valign="top" width="33.33333333333333%" headers="d0e30 ">2</td>
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<td valign="top" width="33.33333333333333%" headers="d0e32 ">00</td>
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<td valign="top" width="33.33333333333333%" headers="d0e34 ">F0F0</td>
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</tr>
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<tr><td valign="top" width="33.33333333333333%" headers="d0e30 ">3</td>
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<td valign="top" width="33.33333333333333%" headers="d0e32 ">98-</td>
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<td valign="top" width="33.33333333333333%" headers="d0e34 ">F9D8</td>
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</tr>
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<tr><td valign="top" width="33.33333333333333%" headers="d0e30 ">4</td>
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<td valign="top" width="33.33333333333333%" headers="d0e32 ">97</td>
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<td valign="top" width="33.33333333333333%" headers="d0e34 ">F9F7</td>
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</tr>
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<tr><td valign="top" width="33.33333333333333%" headers="d0e30 ">5</td>
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<td valign="top" width="33.33333333333333%" headers="d0e32 ">20</td>
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<td valign="top" width="33.33333333333333%" headers="d0e34 ">F2F0</td>
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</tr>
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<tr><td valign="top" width="33.33333333333333%" headers="d0e30 ">6</td>
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<td valign="top" width="33.33333333333333%" headers="d0e32 ">99</td>
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<td valign="top" width="33.33333333333333%" headers="d0e34 ">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>By default (with no sequencing keywords specified and without the
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ALTSEQ keyword), the key field has the SIGNED attribute. The records are sequenced
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in the following 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="d0e88">Record</th>
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<th valign="top" width="33.33333333333333%" id="d0e90">Numeric key field (zoned decimal)</th>
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<th valign="top" width="33.33333333333333%" id="d0e92">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="d0e88 ">3</td>
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<td valign="top" width="33.33333333333333%" headers="d0e90 ">98-</td>
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<td valign="top" width="33.33333333333333%" headers="d0e92 ">F9D8</td>
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</tr>
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<tr><td valign="top" width="33.33333333333333%" headers="d0e88 ">2</td>
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<td valign="top" width="33.33333333333333%" headers="d0e90 ">00</td>
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<td valign="top" width="33.33333333333333%" headers="d0e92 ">F0F0</td>
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</tr>
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<tr><td valign="top" width="33.33333333333333%" headers="d0e88 ">5</td>
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<td valign="top" width="33.33333333333333%" headers="d0e90 ">20</td>
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<td valign="top" width="33.33333333333333%" headers="d0e92 ">F2F0</td>
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</tr>
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<tr><td valign="top" width="33.33333333333333%" headers="d0e88 ">4</td>
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<td valign="top" width="33.33333333333333%" headers="d0e90 ">97</td>
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<td valign="top" width="33.33333333333333%" headers="d0e92 ">F9F7</td>
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</tr>
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<tr><td valign="top" width="33.33333333333333%" headers="d0e88 ">1</td>
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<td valign="top" width="33.33333333333333%" headers="d0e90 ">98</td>
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<td valign="top" width="33.33333333333333%" headers="d0e92 ">F9F8</td>
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</tr>
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<tr><td valign="top" width="33.33333333333333%" headers="d0e88 ">6</td>
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<td valign="top" width="33.33333333333333%" headers="d0e90 ">99</td>
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<td valign="top" width="33.33333333333333%" headers="d0e92 ">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 both SIGNED and DESCEND are specified, the records are sequenced
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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="d0e146">Record</th>
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<th valign="top" width="33.33333333333333%" id="d0e148">Numeric key field (zoned decimal)</th>
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<th valign="top" width="33.33333333333333%" id="d0e150">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="d0e146 ">6</td>
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<td valign="top" width="33.33333333333333%" headers="d0e148 ">99</td>
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<td valign="top" width="33.33333333333333%" headers="d0e150 ">F9F9</td>
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</tr>
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<tr><td valign="top" width="33.33333333333333%" headers="d0e146 ">1</td>
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<td valign="top" width="33.33333333333333%" headers="d0e148 ">98</td>
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<td valign="top" width="33.33333333333333%" headers="d0e150 ">F9F8</td>
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</tr>
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<tr><td valign="top" width="33.33333333333333%" headers="d0e146 ">4</td>
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<td valign="top" width="33.33333333333333%" headers="d0e148 ">97</td>
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<td valign="top" width="33.33333333333333%" headers="d0e150 ">F9F7</td>
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</tr>
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<tr><td valign="top" width="33.33333333333333%" headers="d0e146 ">5</td>
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<td valign="top" width="33.33333333333333%" headers="d0e148 ">20</td>
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<td valign="top" width="33.33333333333333%" headers="d0e150 ">F2F0</td>
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</tr>
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<tr><td valign="top" width="33.33333333333333%" headers="d0e146 ">2</td>
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<td valign="top" width="33.33333333333333%" headers="d0e148 ">00</td>
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<td valign="top" width="33.33333333333333%" headers="d0e150 ">F0F0</td>
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</tr>
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<tr><td valign="top" width="33.33333333333333%" headers="d0e146 ">3</td>
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<td valign="top" width="33.33333333333333%" headers="d0e148 ">98-</td>
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<td valign="top" width="33.33333333333333%" headers="d0e150 ">F9D8</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>This keyword is not valid for a character, date, time, timestamp,
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or hexadecimal data type field. You cannot use it with the ABSVAL, DIGIT,
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UNSIGNED, or ZONE keywords.</p>
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<p>SIGNED (a key field-level keyword) causes
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ALTSEQ (a file-level keyword) to be ignored. If you specify SIGNED for a key
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field, NOALTSEQ is automatically in effect for that key field even if ALTSEQ
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is specified at the file level. This occurs, whether NOALTSEQ is specified.</p>
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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 SIGNED 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 RECORD
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00020A FLDA 7S 2
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00030A FLDB
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00040A K FLDA SIGNED
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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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