94 lines
5.1 KiB
HTML
94 lines
5.1 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.Title" content="ASSUME (Assume) keyword for display files" />
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<meta name="abstract" content="Use this record-level keyword to specify that the i5/OS operating system is to assume that this record is already shown on the display when this file is opened." />
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<meta name="description" content="Use this record-level keyword to specify that the i5/OS operating system is to assume that this record is already shown on the display when this file is opened." />
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<meta name="DC.subject" content="ASSUME (Assume) keyword" />
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<meta name="keywords" content="ASSUME (Assume) keyword" />
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<meta name="copyright" content="(C) Copyright IBM Corporation 2001, 2006" />
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<link rel="stylesheet" type="text/css" href="./ic.css" />
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<title>ASSUME (Assume) keyword for display files</title>
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</head>
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<body id="rzakcmstdfassum"><a name="rzakcmstdfassum"><!-- --></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">ASSUME (Assume) keyword for display files</h1>
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<div><p>Use this record-level keyword to specify that the <span class="keyword">i5/OS™</span> operating system
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is to assume that this record is already shown on the display when this file
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is opened.</p>
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<div class="section"><p>Such a record can also be defined, with the KEEP keyword, in another
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display file. That other display file can be closed before this file (in which
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you are specifying ASSUME) is opened.</p>
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<p>This keyword has no parameters.</p>
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<p>Specify
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the ASSUME keyword for at least one record format within the display file
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so that the <span class="keyword">i5/OS</span> operating system
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does not erase the display when the file is opened. In addition, specify the
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OVERLAY keyword with the ASSUME keyword to prevent the <span class="keyword">i5/OS</span> operating system
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from deleting the display when your program sends the first output operation
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after opening the file.</p>
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<p>If you use the ASSUME keyword, at least one
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field in the record must be able to be displayed. If more than one record
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with the ASSUME keyword exists, they must occupy unique display lines.</p>
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<p>For
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the <span class="keyword">i5/OS</span> operating system to process
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the data correctly, your program must specify the record format name containing
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this keyword.</p>
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<p>The ASSUME keyword is not needed if the record format
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you are defining is in a shared file (SHARE(*YES)) parameter specified on
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the Create Display File (CRTDSPF), Change Display File (CHGDSPF), or Override
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with Display File (OVRDSPF) command).</p>
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<p>This keyword cannot be specified
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with any of the following keywords:</p>
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<div class="tablenoborder"><table cellpadding="4" cellspacing="0" summary="" width="100%" frame="void" border="0" rules="none"><tbody><tr><td valign="top" width="50%"><p>ALWROL<br />
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CLRL<br />
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SFL</p>
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</td>
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<td valign="top" width="50%"><p>SLNO<br />
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USRDFN<br />
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USRDSPMGT</p>
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</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>A warning message is issued at file creation time if the ASSUME
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keyword is specified on a record with the DSPMOD keyword. At runtime,
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the ASSUME keyword is ignored when the display mode changes.</p>
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<p>A file
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with the ASSUME keyword will be opened to the display size of the file with
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the KEEP keyword.</p>
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<p>Option indicators are not valid for this keyword.</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 ASSUME keyword.</p>
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<pre>|...+....1....+....2....+....3....+....4....+....5....+....6....+....7....+....8
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00005A R RECORD ASSUME
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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="rzakcmstkeyent.htm" title="You type the keyword entries that define display files in positions 45 through 80 (functions).">DDS keyword entries for display 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>
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