ibm-information-center/dist/eclipse/plugins/i5OS.ic.dbp_5.4.0.1/rbafordbrk.htm

78 lines
5.6 KiB
HTML

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE html
PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html lang="en-us" xml:lang="en-us">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<meta name="security" content="public" />
<meta name="Robots" content="index,follow" />
<meta http-equiv="PICS-Label" content='(PICS-1.1 "http://www.icra.org/ratingsv02.html" l gen true r (cz 1 lz 1 nz 1 oz 1 vz 1) "http://www.rsac.org/ratingsv01.html" l gen true r (n 0 s 0 v 0 l 0) "http://www.classify.org/safesurf/" l gen true r (SS~~000 1))' />
<meta name="DC.Type" content="concept" />
<meta name="DC.Title" content="Read database records using a keyed sequence access path" />
<meta name="abstract" content="These read operations can be used with a keyed sequence access path to get database records." />
<meta name="description" content="These read operations can be used with a keyed sequence access path to get database records." />
<meta name="DC.subject" content="database record, reading methods, keyed sequence access path, keyed sequence access path, reading database records, access path, keyed sequence" />
<meta name="keywords" content="database record, reading methods, keyed sequence access path, keyed sequence access path, reading database records, access path, keyed sequence" />
<meta name="DC.Relation" scheme="URI" content="rbaforddbf.htm" />
<meta name="DC.Relation" scheme="URI" content="rbafordnoksap.htm" />
<meta name="DC.Relation" scheme="URI" content="rbafordpoksap.htm" />
<meta name="DC.Relation" scheme="URI" content="rbafordfoksap.htm" />
<meta name="DC.Relation" scheme="URI" content="rbafordloksap.htm" />
<meta name="DC.Relation" scheme="URI" content="rbafordsoksap.htm" />
<meta name="DC.Relation" scheme="URI" content="rbafordkoksap.htm" />
<meta name="DC.Relation" scheme="URI" content="rbafordroksap.htm" />
<meta name="DC.Relation" scheme="URI" content="rbafordlfksap.htm" />
<meta name="copyright" content="(C) Copyright IBM Corporation 1998, 2006" />
<meta name="DC.Rights.Owner" content="(C) Copyright IBM Corporation 1998, 2006" />
<meta name="DC.Format" content="XHTML" />
<meta name="DC.Identifier" content="rbafordbrk" />
<meta name="DC.Language" content="en-us" />
<!-- All rights reserved. Licensed Materials Property of IBM -->
<!-- US Government Users Restricted Rights -->
<!-- Use, duplication or disclosure restricted by -->
<!-- GSA ADP Schedule Contract with IBM Corp. -->
<link rel="stylesheet" type="text/css" href="./ibmdita.css" />
<link rel="stylesheet" type="text/css" href="./ic.css" />
<title>Read database records using a keyed sequence access path</title>
</head>
<body id="rbafordbrk"><a name="rbafordbrk"><!-- --></a>
<!-- Java sync-link --><script language="Javascript" src="../rzahg/synch.js" type="text/javascript"></script>
<h1 class="topictitle1">Read database records using a keyed sequence access path</h1>
<div><p>These read operations can be used with a keyed sequence access
path to get database records.</p>
<div class="p">When a keyed sequence access path is used, a read operation cannot position
to the storage occupied by a deleted record. <div class="note"><span class="notetitle">Note:</span> The system performs the
read operations based on the statements that you specify using your high-level
language. Your high-level language might not allow all of the following operations.
See your high-level language topic collection to determine which operations
are allowed by the language.</div>
</div>
</div>
<div>
<ul class="ullinks">
<li class="ulchildlink"><strong><a href="rbafordnoksap.htm">Read next operation</a></strong><br />
This operation gets the next record on the keyed sequence access path.</li>
<li class="ulchildlink"><strong><a href="rbafordpoksap.htm">Read previous operation</a></strong><br />
<span>This operation gets the previous record on the keyed sequence
access path.</span> </li>
<li class="ulchildlink"><strong><a href="rbafordfoksap.htm">Read first operation</a></strong><br />
This operation gets the first record on the keyed sequence access path.</li>
<li class="ulchildlink"><strong><a href="rbafordloksap.htm">Read last operation</a></strong><br />
This operation gets the last record on the keyed sequence access path.</li>
<li class="ulchildlink"><strong><a href="rbafordsoksap.htm">Read same operation</a></strong><br />
<span>This operation gets the record that is identified by the current
file position. The position in the file is not changed.</span></li>
<li class="ulchildlink"><strong><a href="rbafordkoksap.htm">Read by key operation</a></strong><br />
<span>This operation gets the record identified by the key value.</span></li>
<li class="ulchildlink"><strong><a href="rbafordroksap.htm">Read by relative record number operation</a></strong><br />
For a keyed sequence access path, the relative record number can be used. This is the relative record number in the arrival sequence, even though the member opened has a keyed sequence access path.</li>
<li class="ulchildlink"><strong><a href="rbafordlfksap.htm">Read when logical file shares an access path with more keys operation</a></strong><br />
When the first-in-first-out (FIFO), last-in-first-out (LIFO), or first-changed-first-out (FCFO) keyword is not specified in the data description specifications (DDS) for a logical file, the logical file can implicitly share an access path that has more keys than the logical file being created.</li>
</ul>
<div class="familylinks">
<div class="parentlink"><strong>Parent topic:</strong> <a href="rbaforddbf.htm" title="The iSeries system provides a number of ways to read database records.">Read database records</a></div>
</div>
</div>
</body>
</html>