490 lines
13 KiB
HTML
490 lines
13 KiB
HTML
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<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
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<html>
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<head>
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<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
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<meta name="Copyright" content="Copyright (c) 2006 by IBM Corporation">
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<title>Retrieve Data Area (QWCRDTAA) API</title>
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<!-- Begin Header Records ========================================= -->
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<!-- All rights reserved. Licensed Materials Property of IBM -->
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<!-- US Government Users Restricted Rights -->
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<!-- Use, duplication or disclosure restricted by -->
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<!-- GSA ADP Schedule Contract with IBM Corp. -->
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<!-- WM SCRIPT A converted by B2H R4.1 (346) (CMS) by V2KEA304 -->
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<!-- at RCHVMW2 on 17 Feb 1999 at 11:05:09 -->
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<!-- File cleanup completed on 16 July 2001 -->
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<!-- Change History: -->
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<!-- YYMMDD USERID Change description -->
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<!-- File cleanup completed Feb 2002 by v2cdijab -->
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<!-- End Header Records -->
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<link rel="stylesheet" type="text/css" href="../rzahg/ic.css">
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</head>
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<body>
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<a name="Top_Of_Page"></a>
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<!-- Java sync-link -->
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<script type="text/javascript" language="Javascript" src="../rzahg/synch.js">
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</script>
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<h2>Retrieve Data Area (QWCRDTAA) API</h2>
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<div class="box" style="width: 80%;">
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<br>
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Required Parameter Group:<br>
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<!-- iddvc RMBR -->
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<br>
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<table width="100%">
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<tr>
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<td align="center" valign="top" width="10%">1</td>
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<td align="left" valign="top" width="50%">Receiver variable</td>
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<td align="left" valign="top" width="20%">Output</td>
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<td align="left" valign="top" width="20%">Char(*)</td>
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</tr>
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<tr>
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<td align="center" valign="top">2</td>
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<td align="left" valign="top">Length of receiver variable</td>
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<td align="left" valign="top">Input</td>
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<td align="left" valign="top">Binary(4)</td>
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</tr>
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<tr>
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<td align="center" valign="top">3</td>
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<td align="left" valign="top">Qualified data area name</td>
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<td align="left" valign="top">Input</td>
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<td align="left" valign="top">Char(20)</td>
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</tr>
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<tr>
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<td align="center" valign="top">4</td>
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<td align="left" valign="top">Starting position</td>
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<td align="left" valign="top">Input</td>
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<td align="left" valign="top">Binary(4)</td>
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</tr>
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<tr>
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<td align="center" valign="top">5</td>
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<td align="left" valign="top">Length of data</td>
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<td align="left" valign="top">Input</td>
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<td align="left" valign="top">Binary(4)</td>
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</tr>
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<tr>
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<td align="center" valign="top">6</td>
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<td align="left" valign="top">Error code</td>
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<td align="left" valign="top">I/O</td>
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<td align="left" valign="top">Char(*)</td>
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</tr>
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</table>
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<br>
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Default Public Authority: *USE<br>
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<!-- iddvc RMBR -->
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<br>
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Threadsafe: Conditional; see <a href="#Header_204">Usage Notes</a><br>
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<!-- iddvc RMBR -->
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<br>
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</div>
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<p>The Retrieve Data Area (QWCRDTAA) API allows you to retrieve the contents of
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a data area. Distributed data management (DDM) data areas are supported by this
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API. In other words, this API can retrieve a data area value from a data area
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that exists on a remote i5/OS.</p>
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<br>
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<h3>Authorities and Locks</h3>
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<dl>
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<dt><em>Library Authority</em></dt>
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<dd>*EXECUTE</dd>
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<dt><em>Data Area Authority</em></dt>
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<dd>*USE</dd>
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<dt><em>Data Area Lock</em></dt>
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<dd>*SHRRD</dd>
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</dl>
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<br>
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<h3>Required Parameter Group</h3>
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<dl>
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<dt><strong>Receiver variable</strong></dt>
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<dd>OUTPUT; CHAR(*)
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<p>The receiver variable that receives the information requested. You can
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specify the size of the area to be smaller than the format requested as long as
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you specify the length parameter correctly. As a result, the API returns only
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the data that the area can hold. For the format, see <a href="#HDRRECVAR1">
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Format of Data Returned</a>.</p>
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</dd>
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<dt><strong>Length of receiver variable</strong></dt>
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<dd>INPUT; BINARY(4)
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<p>The length of the receiver variable described in <a href="#HDRRECVAR1">
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Format of Data Returned</a>. If the length is larger than the size of the
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receiver variable, the results may not be predictable. The minimum length is 8
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bytes.</p>
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</dd>
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<dt><strong>Qualified data area name</strong></dt>
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<dd>INPUT; CHAR(20)
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<p>The first 10 characters contain the data area name, and the second 10
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characters contain the name of the library where the data area is located.</p>
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<p>When one of the special values is specified, the library name must be blank.
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The special values for the data area are:</p>
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<table cellpadding="5">
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<!-- cols="10 90" -->
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<tr>
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<td align="left" valign="top"><em>*LDA</em></td>
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<td align="left" valign="top">Local data area</td>
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</tr>
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<tr>
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<td align="left" valign="top"><em>*GDA</em></td>
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<td align="left" valign="top">Group data area</td>
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</tr>
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<tr>
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<td align="left" valign="top"><em>*PDA</em></td>
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<td align="left" valign="top">Program initialization parameter data area</td>
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</tr>
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</table>
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<p>The special values supported for the library name are:</p>
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<table cellpadding="5">
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<!-- cols="15 85" -->
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<tr>
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<td align="left" valign="top"><em>*LIBL</em></td>
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<td align="left" valign="top">The library list.</td>
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</tr>
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<tr>
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<td align="left" valign="top"><em>*CURLIB</em></td>
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<td align="left" valign="top">The job's current library.</td>
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</tr>
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</table>
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<br>
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</dd>
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<dt><strong>Starting position</strong></dt>
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<dd>INPUT; BINARY(4)
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<p>The first byte of the data area to be retrieved. A value of 1 will identify
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the first character in the data area. The maximum value allowed for the
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starting position is 2000. A value of -1 will return all the characters in the
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data area.</p>
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</dd>
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<dt><strong>Length of data</strong></dt>
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<dd>INPUT; BINARY(4)
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<p>The length of the data area substring to be retrieved. The length of data
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parameter must be greater than 0. If the length of data parameter is greater
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than the size of the data area, the receiver variable is padded with
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blanks.</p>
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<p>The length of data parameter added to the starting position minus one must
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be between the substring starting position and the data area end; otherwise,
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CPF1089 (Substring specified for data area not valid) is issued. If you have a
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small data area and only want the fixed portion of the data returned, you must
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code -1 for the starting position.</p>
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</dd>
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<dt><strong>Error code</strong></dt>
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<dd>I/O; CHAR(*)
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<p>The structure in which to return error information. For the format of the
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structure, see <a href="../apiref/error.htm#hdrerrcod">Error Code Parameter</a>.</p>
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</dd>
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</dl>
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<br>
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<h3><a name="HDRRECVAR1">Format of Data Returned</a></h3>
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<p>The receiver variable holds the information returned for the data area. The
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following table shows the format of the receiver variable.</p>
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<table border width="80%">
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<tr>
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<th align="center" valign="bottom" colspan="2">Offset</th>
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<th align="left" valign="bottom" rowspan="2">Type</th>
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<th align="left" valign="bottom" rowspan="2">Field</th>
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</tr>
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<tr>
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<th align="center" valign="bottom">Dec</th>
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<th align="center" valign="bottom">Hex</th>
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</tr>
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<tr>
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<td align="center" valign="top" width="10%">0</td>
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<td align="center" valign="top" width="10%">0</td>
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<td align="left" valign="top" width="20%">BINARY(4)</td>
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<td align="left" valign="top" width="60%">Bytes available</td>
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</tr>
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<tr>
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<td align="center" valign="top">4</td>
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<td align="center" valign="top">4</td>
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<td align="left" valign="top">BINARY(4)</td>
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<td align="left" valign="top">Bytes returned</td>
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</tr>
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<tr>
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<td align="center" valign="top">8</td>
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<td align="center" valign="top">8</td>
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<td align="left" valign="top">CHAR(10)</td>
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<td align="left" valign="top">Type of value returned</td>
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</tr>
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<tr>
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<td align="center" valign="top">18</td>
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<td align="center" valign="top">12</td>
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<td align="left" valign="top">CHAR(10)</td>
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<td align="left" valign="top">Library name</td>
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</tr>
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<tr>
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<td align="center" valign="top">28</td>
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<td align="center" valign="top">1C</td>
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<td align="left" valign="top">BINARY(4)</td>
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<td align="left" valign="top">Length of value returned</td>
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</tr>
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<tr>
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<td align="center" valign="top">32</td>
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<td align="center" valign="top">20</td>
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<td align="left" valign="top">BINARY(4)</td>
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<td align="left" valign="top">Number of decimal positions</td>
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</tr>
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<tr>
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<td align="center" valign="top">36</td>
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<td align="center" valign="top">24</td>
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<td align="left" valign="top">CHAR(*)</td>
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<td align="left" valign="top">Value</td>
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</tr>
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</table>
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<br>
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<br>
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<h3><a name="Header_203">Field Descriptions</a></h3>
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<p><strong>Bytes available.</strong> The length of all data available to
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return. All available data is returned if enough space is provided.</p>
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<p><strong>Bytes returned.</strong> The length of all data actually returned.
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If the data is truncated because the receiver variable was not sufficiently
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large to hold all of the data available, this value will be less than the bytes
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available.</p>
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<p><strong>Length of value returned.</strong> The length of the value that was
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returned.</p>
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<p><strong>Library name.</strong> The name of the library where the data area
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was found. This field will be blank if one of the special values was specified
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for the first ten characters of the qualified data area name.</p>
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<p><strong>Number of decimal positions.</strong> The number of decimal
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positions.</p>
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<p><strong>Type of value returned.</strong> The following values may be
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returned.</p>
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<table cellpadding="5">
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<!-- cols="10 90" -->
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<tr>
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<td align="left" valign="top"><em>*CHAR</em></td>
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<td align="left" valign="top">A character data area.</td>
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</tr>
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<tr>
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<td align="left" valign="top"><em>*DEC</em></td>
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<td align="left" valign="top">A decimal data area. The value returned will be a
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packed decimal value.</td>
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</tr>
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<tr>
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<td align="left" valign="top"><em>*LGL</em></td>
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<td align="left" valign="top">A logical data area.</td>
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</tr>
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</table>
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<p><strong>Value.</strong> The contents of the data area.</p>
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<br>
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<h3><a name="Header_204">Usage Notes</a></h3>
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<p>This API is threadsafe, except in the following situations:</p>
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<ul>
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<li>The retrieval of DDM data areas in a job that allows multiple threads is
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not threadsafe.</li>
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<li>The retrieval of DDM data areas will not be allowed when more than one
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thread is active in a job.</li>
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</ul>
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<br>
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<h3>Error Messages</h3>
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<table width="100%" cellpadding="5">
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<!-- cols="15 85" -->
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<tr>
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<th align="left" valign="top" nowrap>Message ID</th>
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<th align="left" valign="top">Error Message Text</th>
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</tr>
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<tr>
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<td align="left" valign="top">CPF101A E</td>
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<td align="left" valign="top">Operation on DDM data area &1 in &2
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failed.</td>
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</tr>
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<tr>
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<td align="left" valign="top">CPF1015 E</td>
|
||
|
|
<td align="left" valign="top">Data area &1 in &2 not found.</td>
|
||
|
|
</tr>
|
||
|
|
|
||
|
|
<tr>
|
||
|
|
<td align="left" valign="top">CPF1016 E</td>
|
||
|
|
<td align="left" valign="top">No authority to data area &1 in &2.</td>
|
||
|
|
</tr>
|
||
|
|
|
||
|
|
<tr>
|
||
|
|
<td align="left" valign="top">CPF1021 E</td>
|
||
|
|
<td align="left" valign="top">Library &1 not found for data area
|
||
|
|
&2.</td>
|
||
|
|
</tr>
|
||
|
|
|
||
|
|
<tr>
|
||
|
|
<td align="left" valign="top">CPF1022 E</td>
|
||
|
|
<td align="left" valign="top">No authority to library &1 data area
|
||
|
|
&2.</td>
|
||
|
|
</tr>
|
||
|
|
|
||
|
|
<tr>
|
||
|
|
<td align="left" valign="top">CPF1046 E</td>
|
||
|
|
<td align="left" valign="top">DTAARA(*GDA) not valid because job not group
|
||
|
|
job.</td>
|
||
|
|
</tr>
|
||
|
|
|
||
|
|
<tr>
|
||
|
|
<td align="left" valign="top">CPF1063 E</td>
|
||
|
|
<td align="left" valign="top">Cannot allocate data area &1 in library
|
||
|
|
&2.</td>
|
||
|
|
</tr>
|
||
|
|
|
||
|
|
<tr>
|
||
|
|
<td align="left" valign="top">CPF1067 E</td>
|
||
|
|
<td align="left" valign="top">Cannot allocate library &1.</td>
|
||
|
|
</tr>
|
||
|
|
|
||
|
|
<tr>
|
||
|
|
<td align="left" valign="top">CPF1072 E</td>
|
||
|
|
<td align="left" valign="top">DTAARA(*PDA) not valid because job not prestart
|
||
|
|
job.</td>
|
||
|
|
</tr>
|
||
|
|
|
||
|
|
<tr>
|
||
|
|
<td align="left" valign="top">CPF1088 E</td>
|
||
|
|
<td align="left" valign="top">Starting position outside of data area.</td>
|
||
|
|
</tr>
|
||
|
|
|
||
|
|
<tr>
|
||
|
|
<td align="left" valign="top">CPF1089 E</td>
|
||
|
|
<td align="left" valign="top">Substring specified for data area not valid.</td>
|
||
|
|
</tr>
|
||
|
|
|
||
|
|
<tr>
|
||
|
|
<td align="left" valign="top">CPF180B E</td>
|
||
|
|
<td align="left" valign="top">Function &1 not allowed.</td>
|
||
|
|
</tr>
|
||
|
|
|
||
|
|
<tr>
|
||
|
|
<td align="left" valign="top">CPF1863 E</td>
|
||
|
|
<td align="left" valign="top">Length of value not valid.</td>
|
||
|
|
</tr>
|
||
|
|
|
||
|
|
<tr>
|
||
|
|
<td align="left" valign="top">CPF24B4 E</td>
|
||
|
|
<td align="left" valign="top">Severe error while addressing parameter
|
||
|
|
list.</td>
|
||
|
|
</tr>
|
||
|
|
|
||
|
|
<tr>
|
||
|
|
<td align="left" valign="top">CPF3CF1 E</td>
|
||
|
|
<td align="left" valign="top">Error code parameter not valid.</td>
|
||
|
|
</tr>
|
||
|
|
|
||
|
|
<tr>
|
||
|
|
<td align="left" valign="top">CPF3CF2 E</td>
|
||
|
|
<td align="left" valign="top">Error(s) occurred during running of &1
|
||
|
|
API.</td>
|
||
|
|
</tr>
|
||
|
|
|
||
|
|
<tr>
|
||
|
|
<td align="left" valign="top">CPF3C19 E</td>
|
||
|
|
<td align="left" valign="top">Error occurred with receiver variable
|
||
|
|
specified.</td>
|
||
|
|
</tr>
|
||
|
|
|
||
|
|
<tr>
|
||
|
|
<td align="left" valign="top">CPF3C24 E</td>
|
||
|
|
<td align="left" valign="top">Length of the receiver variable is not
|
||
|
|
valid.</td>
|
||
|
|
</tr>
|
||
|
|
|
||
|
|
<tr>
|
||
|
|
<td align="left" valign="top">CPF3C90 E</td>
|
||
|
|
<td align="left" valign="top">Literal value cannot be changed.</td>
|
||
|
|
</tr>
|
||
|
|
|
||
|
|
<tr>
|
||
|
|
<td align="left" valign="top">CPF9872 E</td>
|
||
|
|
<td align="left" valign="top">Program or service program &1 in library
|
||
|
|
&2 ended. Reason code &3.</td>
|
||
|
|
</tr>
|
||
|
|
</table>
|
||
|
|
|
||
|
|
<br>
|
||
|
|
<hr>
|
||
|
|
API introduced: V2R3
|
||
|
|
|
||
|
|
<hr>
|
||
|
|
<table align="center" cellpadding="2" cellspacing="2">
|
||
|
|
<tr align="center">
|
||
|
|
<td valign="middle" align="center"><a href="#Top">Top</a> | <a href="wm1.htm">
|
||
|
|
Work Management APIs</a> | <a href="aplist.htm">APIs by category</a></td>
|
||
|
|
</tr>
|
||
|
|
</table>
|
||
|
|
</body>
|
||
|
|
</html>
|
||
|
|
|