85 lines
4.5 KiB
HTML
85 lines
4.5 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="task" />
|
||
|
|
<meta name="DC.Title" content="Stored procedure result sets" />
|
||
|
|
<meta name="abstract" content="Define scrollable SQL stored procedure result sets." />
|
||
|
|
<meta name="description" content="Define scrollable SQL stored procedure result sets." />
|
||
|
|
<meta name="DC.Relation" scheme="URI" content="rzaikodbcstoredproc.htm" />
|
||
|
|
<meta name="copyright" content="(C) Copyright IBM Corporation 1999, 2006" />
|
||
|
|
<meta name="DC.Rights.Owner" content="(C) Copyright IBM Corporation 1999, 2006" />
|
||
|
|
<meta name="DC.Format" content="XHTML" />
|
||
|
|
<meta name="DC.Identifier" content="rzaikspresultsets" />
|
||
|
|
<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>Stored procedure result sets</title>
|
||
|
|
</head>
|
||
|
|
<body id="rzaikspresultsets"><a name="rzaikspresultsets"><!-- --></a>
|
||
|
|
<!-- Java sync-link --><script language="Javascript" src="../rzahg/synch.js" type="text/javascript"></script>
|
||
|
|
<h1 class="topictitle1">Stored procedure result sets</h1>
|
||
|
|
<div><p>Define scrollable SQL stored procedure result sets.</p>
|
||
|
|
<div class="section">An application can now have scrollable SQL stored procedure result
|
||
|
|
sets when running to a V5R3 (or later) iSeries™ server. To take advantage of
|
||
|
|
this support, make the following two changes. </div>
|
||
|
|
<ol><li><span>Create the stored procedure with the cursor defined as scrollable. </span><ol type="a"><li class="substepexpand"><span>This is done by adding the SCROLL keyword into the CREATE PROCEDURE.</span> In the following two examples, the first stored procedure returns
|
||
|
|
a scrollable result set while the second one does not. <ul><li><pre>CREATE PROCEDURE MYLIB.SCROLLSP ( ) RESULT SETS 1 LANGUAGE SQL
|
||
|
|
sqlproc: begin
|
||
|
|
DECLARE CUR1 SCROLL CURSOR FOR
|
||
|
|
SELECT * FROM QIWS.QCUSTCDT;
|
||
|
|
OPEN CUR1;
|
||
|
|
SET RESULT SETS CURSOR CUR1;
|
||
|
|
end </pre>
|
||
|
|
</li>
|
||
|
|
<li><pre>CREATE PROCEDURE MYLIB.NOSCROLLSP ( ) RESULT SETS 1 LANGUAGE SQL
|
||
|
|
sqlproc: begin
|
||
|
|
DECLARE CUR1 CURSOR FOR
|
||
|
|
SELECT * FROM QIWS.QCUSTCDT;
|
||
|
|
OPEN CUR1;
|
||
|
|
SET RESULT SETS CURSOR CUR1;
|
||
|
|
end</pre>
|
||
|
|
</li>
|
||
|
|
</ul>
|
||
|
|
</li>
|
||
|
|
</ol>
|
||
|
|
</li>
|
||
|
|
<li><span>Code the application using ODBC to ask for a scrollable cursor
|
||
|
|
type. </span><ol type="a"><li class="substepexpand"><span>Call the SQLSetStmtAttr API. </span></li>
|
||
|
|
<li class="substepexpand"><span>Set the SQL_ATTR_CURSOR_TYPE option to SQL_CURSOR_DYNAMIC. </span> <p>If an attempt is made to scroll backwards with a stored procedure
|
||
|
|
that did not specify a scrollable cursor, several different problems can occur.
|
||
|
|
In most cases an error is returned from the server indicating scrolling is
|
||
|
|
invalid, and in some cases incorrect data is returned.</p>
|
||
|
|
<p>Even if the stored
|
||
|
|
procedure returns multiple result sets, you can only use one cursor type.
|
||
|
|
ODBC either returns an error or ignores the cursor type when a different
|
||
|
|
cursor type is specified for the second result set. To use a scrollable result
|
||
|
|
set as one of the result sets, the application needs to set the cursor type
|
||
|
|
to be scrollable as defined above.</p>
|
||
|
|
<p>Any attempts to use an updateable
|
||
|
|
cursor with a stored procedure is ignored. Stored procedure result sets are
|
||
|
|
read-only.</p>
|
||
|
|
<p>Cursor sensitivity may not be honored with stored procedure
|
||
|
|
result sets. Cursor sensitivity is controlled by the way the server cursor
|
||
|
|
is defined when creating the procedure.</p>
|
||
|
|
</li>
|
||
|
|
</ol>
|
||
|
|
</li>
|
||
|
|
</ol>
|
||
|
|
</div>
|
||
|
|
<div>
|
||
|
|
<div class="familylinks">
|
||
|
|
<div class="parentlink"><strong>Parent topic:</strong> <a href="rzaikodbcstoredproc.htm" title="Stored procedures commonly are used in client/server applications, especially in the area of online transaction processing (OLTP), since they can provide performance, transaction-integrity and security benefits.">Stored procedures</a></div>
|
||
|
|
</div>
|
||
|
|
</div>
|
||
|
|
</body>
|
||
|
|
</html>
|