90 lines
4.9 KiB
HTML
90 lines
4.9 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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<head>
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<meta name="DC.Type" content="reference" />
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<meta name="DC.Title" content="Example: Run CL commands that use SQL stored procedures and ODBC" />
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<meta name="abstract" content="Stored procedure support provides a means to run iSeries server Control Language (CL) commands by using the SQL CALL statement." />
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<meta name="description" content="Stored procedure support provides a means to run iSeries server Control Language (CL) commands by using the SQL CALL statement." />
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<meta name="DC.Relation" scheme="URI" content="rzaikspex.htm" />
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<meta name="DC.Relation" scheme="URI" content="rzaikodbcapifunctions.htm" />
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<meta name="copyright" content="(C) Copyright IBM Corporation 1999, 2006" />
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<meta name="DC.Rights.Owner" content="(C) Copyright IBM Corporation 1999, 2006" />
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<meta name="DC.Format" content="XHTML" />
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<meta name="DC.Identifier" content="runclcmd" />
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<meta name="DC.Language" content="en-us" />
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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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<!-- GSA ADP Schedule Contract with IBM Corp. -->
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<link rel="stylesheet" type="text/css" href="./ibmdita.css" />
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<link rel="stylesheet" type="text/css" href="./ic.css" />
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<title>Example: Run CL commands that use SQL stored procedures and ODBC</title>
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</head>
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<body id="runclcmd"><a name="runclcmd"><!-- --></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">Example: Run CL commands that use SQL stored procedures and ODBC</h1>
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<div><p>Stored procedure support provides a means to run iSeries™ server
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Control Language (CL) commands by using the SQL CALL statement. </p>
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<div class="section"><div class="p">Use CL commands when:<ul><li>Performing an override for files</li>
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<li>Initiating debug</li>
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<li>Using other commands that can affect the performance of subsequent SQL
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statements</li>
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</ul>
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</div>
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</div>
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<div class="section"><p>The following examples show cases where a CL command is run on
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the iSeries server
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by using the CALL statement, which calls the program that processes CL commands.
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That program (QCMDEXC in library QSYS) expects two parameters:</p>
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</div>
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<div class="section"> <ol><li>A string that contains the command text to execute</li>
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<li>A decimal (15,5) field that contains the length of the command text</li>
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</ol>
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</div>
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<div class="section"><p>The parameters must include these attributes for the command to
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be interpreted properly. The second parameter on the CALL statement must have
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characters explicitly specified for all places of the decimal (15,5) field.</p>
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</div>
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<div class="section"><p>In the following example, a C program on the PC is going to run
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an <span class="cmdname">OVRDBF</span> command that is 65 characters long (including
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embedded blanks). The text of the <span class="cmdname">OVRDBF</span> command is as
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follows: </p>
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<pre> OVRDBF FILE(TESTER) TOFILE(JMBLIB/TESTER) MBR(NO2) OVRSCOPE(*JOB)</pre>
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</div>
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<div class="section"><p>The code for performing this command by using ODBC APIs is as
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follows: </p>
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<pre> HSTMT hstmt;
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SQLCHAR stmt[301];
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rc = SQLAllocHandle(SQL_HANDLE_STMT, hdbc, &hstmt);
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strcpy(stmt,"CALL QSYS.QCMDEXC('OVRDBF FILE(TESTER) TOFILE(MYLIB/");
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strcat(stmt,"TESTER) MBR(NO2) OVRSCOPE(*JOB)',0000000064.00000)");
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rc = SQLExecDirect(hstmt, stmt, SQL_NTS);
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</pre>
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</div>
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<div class="section"><p>Statements now run against file MYLIB/TESTER will reference member
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number 2 rather than the first member.</p>
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</div>
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<div class="section"><p>Another CL command that is useful to run against a database server
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job is the <span class="cmdname">STRDBG</span> command. You do not have to call a stored
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procedure to run this command, though. There is an option on the Diagnostic
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tab of the DSN setup GUI on the Diagnostic tab that will automatically run
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the <span class="cmdname">STRDBG</span> command during the connection attempt. </p>
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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="rzaikspex.htm" title="View examples of stored procedures.">Examples: Stored procedures</a></div>
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</div>
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<div class="relconcepts"><strong>Related concepts</strong><br />
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<div><a href="rzaikodbcapifunctions.htm" title="Learn about implementations issues when using ODBC APIs.">Implementation issues of ODBC APIs</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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