125 lines
4.4 KiB
HTML
125 lines
4.4 KiB
HTML
|
|
||
|
|
<!doctype html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
|
||
|
|
<html>
|
||
|
|
<head><META http-equiv="Content-Type" content="text/html; charset=utf-8">
|
||
|
|
<title>Position Data Base File (POSDBF)</title>
|
||
|
|
<link rel="stylesheet" type="text/css" href="../rzahg/ic.css">
|
||
|
|
</head>
|
||
|
|
<body bgcolor="white">
|
||
|
|
<script language="Javascript" src="../rzahg/synch.js" type="text/javascript"></script>
|
||
|
|
<a name="POSDBF.Top_Of_Page"></a>
|
||
|
|
<h2>Position Data Base File (POSDBF)</h2>
|
||
|
|
<table width="100%">
|
||
|
|
<tr>
|
||
|
|
<td valign="top" align="left"><b>Where allowed to run: </b>All environments (*ALL)<br>
|
||
|
|
<b>Threadsafe: </b>Yes
|
||
|
|
</td>
|
||
|
|
<td valign="top" align="right">
|
||
|
|
<a href="#POSDBF.PARAMETERS.TABLE">Parameters</a><br>
|
||
|
|
<a href="#POSDBF.COMMAND.EXAMPLES">Examples</a><br>
|
||
|
|
<a href="#POSDBF.ERROR.MESSAGES">Error messages</a></td>
|
||
|
|
</tr>
|
||
|
|
</table>
|
||
|
|
|
||
|
|
<div> <a name="POSDBF"></a>
|
||
|
|
<p>The Position Database File (POSDBF) command allows you to set the position of a database file to either the beginning or end of an open file.
|
||
|
|
</p>
|
||
|
|
</div>
|
||
|
|
<table width="100%">
|
||
|
|
<tr><td align="right"><a href="#POSDBF.Top_Of_Page">Top</a></td></tr>
|
||
|
|
</table>
|
||
|
|
<hr size="2" width="100%">
|
||
|
|
|
||
|
|
<div>
|
||
|
|
<h3><a name="POSDBF.PARAMETERS.TABLE">Parameters</a></h3>
|
||
|
|
<table border="1" cellpadding="4" cellspacing="0">
|
||
|
|
<!-- col1="10" col2="15" col3="30" col4="10" -->
|
||
|
|
<tr>
|
||
|
|
<th bgcolor="aqua" valign="bottom" align="left">Keyword</th>
|
||
|
|
<th bgcolor="aqua" valign="bottom" align="left">Description</th>
|
||
|
|
<th bgcolor="aqua" valign="bottom" align="left">Choices</th>
|
||
|
|
<th bgcolor="aqua" valign="bottom" align="left">Notes</th>
|
||
|
|
</tr>
|
||
|
|
<tr>
|
||
|
|
<td valign="top"><a href="#POSDBF.OPNID"><b>OPNID</b></a></td>
|
||
|
|
<td valign="top">Open file identifier</td>
|
||
|
|
<td valign="top"><i>Name</i></td>
|
||
|
|
<td valign="top">Required, Positional 1</td>
|
||
|
|
</tr>
|
||
|
|
<tr>
|
||
|
|
<td valign="top"><a href="#POSDBF.POSITION"><b>POSITION</b></a></td>
|
||
|
|
<td valign="top">File position</td>
|
||
|
|
<td valign="top">*START, *END</td>
|
||
|
|
<td valign="top">Required, Positional 2</td>
|
||
|
|
</tr>
|
||
|
|
</table>
|
||
|
|
|
||
|
|
<table width="100%">
|
||
|
|
<tr><td align="right"><a href="#POSDBF.Top_Of_Page">Top</a></td></tr>
|
||
|
|
</table>
|
||
|
|
</div>
|
||
|
|
<div> <a name="POSDBF.OPNID"></a>
|
||
|
|
<h3>Open file identifier (OPNID)</h3>
|
||
|
|
<p>Identifies the opened file to reposition. This file must be opened by either the Open Database File (OPNDBF) or Open Query File (OPNQRYF) command.
|
||
|
|
</p>
|
||
|
|
<p>This is a required parameter.
|
||
|
|
</p>
|
||
|
|
<dl>
|
||
|
|
<dt><b><i>name</i></b></dt>
|
||
|
|
<dd>Specify the open file identifier.
|
||
|
|
</dd>
|
||
|
|
</dl>
|
||
|
|
</div>
|
||
|
|
<table width="100%">
|
||
|
|
<tr><td align="right"><a href="#POSDBF.Top_Of_Page">Top</a></td></tr>
|
||
|
|
</table>
|
||
|
|
<div> <a name="POSDBF.POSITION"></a>
|
||
|
|
<h3>File position (POSITION)</h3>
|
||
|
|
<p>Specifies the starting or ending position of the database file.
|
||
|
|
</p>
|
||
|
|
<p>This is a required parameter.
|
||
|
|
</p>
|
||
|
|
<dl>
|
||
|
|
<dt><b>*START</b></dt>
|
||
|
|
<dd>The position of the database file is set to the start position of the member currently open. After the start position is set, a read next operation gets the first record in the member. A previous read operation gets the last record in the previous member, if *ALL is specified for the <b>Overriding member (MBR)</b> parameter of the Override with Database File (OVRDBF) command. Otherwise, a <i>get past start of file</i> exception occurs.
|
||
|
|
</dd>
|
||
|
|
<dt><b>*END</b></dt>
|
||
|
|
<dd>The position of the database file is set to the end of the member currently open. After the end position is set, a read next operation gets the first record in the next member, if *ALL is specified for the MBR parameter of the Override with Database File (OVRDBF) command. Otherwise, a <i>get past end of file</i> exception occurs. A read previous operation gets the last record in the member.
|
||
|
|
</dd>
|
||
|
|
</dl>
|
||
|
|
</div>
|
||
|
|
<table width="100%">
|
||
|
|
<tr><td align="right"><a href="#POSDBF.Top_Of_Page">Top</a></td></tr>
|
||
|
|
</table>
|
||
|
|
<hr size="2" width="100%">
|
||
|
|
<div><h3><a name="POSDBF.COMMAND.EXAMPLES">Examples</a> </h3>
|
||
|
|
<p>
|
||
|
|
<pre>
|
||
|
|
POSDBF OPNID(XXX) POSITION(*START)
|
||
|
|
</pre>
|
||
|
|
</p>
|
||
|
|
<p>This command sets the record position of the database file that is opened with OPNID(XXX) to the starting position of the database file member that is currently open.
|
||
|
|
</p>
|
||
|
|
</div>
|
||
|
|
<table width="100%">
|
||
|
|
<tr><td align="right"><a href="#POSDBF.Top_Of_Page">Top</a></td></tr>
|
||
|
|
</table>
|
||
|
|
<hr size="2" width="100%">
|
||
|
|
<div><h3><a name="POSDBF.ERROR.MESSAGES">Error messages</a> </h3>
|
||
|
|
<p><b><u>*ESCAPE Messages</u></b>
|
||
|
|
</p>
|
||
|
|
<dl>
|
||
|
|
<dt><b>CPF5213</b></dt>
|
||
|
|
<dd>Positioning of member &3 failed.
|
||
|
|
</dd>
|
||
|
|
<dt><b>CPF5230</b></dt>
|
||
|
|
<dd>No file open with OPNID(&4).
|
||
|
|
</dd>
|
||
|
|
</dl>
|
||
|
|
</div>
|
||
|
|
<table width="100%">
|
||
|
|
<tr><td align="right"><a href="#POSDBF.Top_Of_Page">Top</a></td></tr>
|
||
|
|
</table>
|
||
|
|
</body>
|
||
|
|
</html>
|