91 lines
5.4 KiB
HTML
91 lines
5.4 KiB
HTML
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<meta name="abstract" content="Specify this keyword at the field level, the select- or omit-field level, or both." />
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<title>Physical and Logical Files, RANGE</title>
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</head>
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<body id="tdrange"><a name="tdrange"><!-- --></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">RANGE (Range) keyword for physical and logical files</h1>
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<div><p>Specify this keyword at the field level, the select- or omit-field
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level, or both.</p>
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<div class="section"><div class="p">The format of the keyword is: <pre>RANGE(low-value high-value)</pre>
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</div>
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</div>
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<div class="example" id="tdrange__e1"><a name="tdrange__e1"><!-- --></a><h4 class="sectiontitle">Example 1</h4><p>The following example shows how
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to specify character and numeric strings for the RANGE keyword.</p>
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<pre>|...+....1....+....2....+....3....+....4....+....5....+....6....+....7....+....8
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00010A R RECORD PFILE(PF1)
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A
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00020A FIELDA 1 0 RANGE(2 5) <span><span>1</span></span>
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00030A FIELDB 1 RANGE('2' '5')
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00040A FIELDC
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00050A K FIELDD
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00060A S FIELDA RANGE(1 4) <span><span>2</span></span>
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A</pre>
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<p>In this example, RANGE (<span>1</span>) is specified for
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FIELDA and FIELDB as a validity checking keyword for display files that refer
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to FIELDA and FIELDB. In the display file, RANGE requires that the workstation
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user type only 2, 3, 4, or 5 in FIELDA or FIELDB. FIELDA is a numeric field
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and FIELDB is a character field. The type of field you specify depends on
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the high-level language the program is written in.</p>
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<p>RANGE (<span>2</span>)
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is specified as a select/omit keyword for FIELDA. Records from the physical
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file PF1 are retrieved through this logical file record format only if the
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value of FIELDA is 1, 2, 3, or 4.</p>
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</div>
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<div class="example" id="tdrange__e2"><a name="tdrange__e2"><!-- --></a><h4 class="sectiontitle">Example 2</h4><p>The following example uses hexadecimal
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character strings when specifying the RANGE keyword.</p>
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<pre>|...+....1....+....2....+....3....+....4....+....5....+....6....+....7....+....8
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00010A R RCD1 PFILE(PF1)
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00020A CODEA
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00030A FLD1
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00040A FLD2
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00050A K FLD1
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00060A S CODEA RANGE(X'51' X'54')
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A</pre>
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<p>RANGE is specified as a select/omit keyword for CODEA
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(which is a 1-byte field). Records from physical file PF1 are retrieved through
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this record format only if the value of field CODEA is from hex 51 through
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hex 54.</p>
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</div>
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</div>
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<div>
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<ul class="ullinks">
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<li class="ulchildlink"><strong><a href="rzakbmstrangefield.htm">Specify RANGE at the field level</a></strong><br />
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At the field level, this keyword specifies validity checking for the field that you are defining when it is referred to later during display file creation.</li>
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<li class="ulchildlink"><strong><a href="rzakbmstrangeselom.htm">Specify RANGE at the select or omit-field level</a></strong><br />
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At the select/omit-field level, this keyword selects or omits records retrieved from the physical file(s) when your program sends an input operation using the record format in which the select/omit field is specified.</li>
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</ul>
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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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