<?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="reference" /> <meta name="DC.Title" content="Use embedded CALL statement where no procedure definition exists" /> <meta name="abstract" content="A static CALL statement without a corresponding CREATE PROCEDURE statement is processed with the following rules." /> <meta name="description" content="A static CALL statement without a corresponding CREATE PROCEDURE statement is processed with the following rules." /> <meta name="DC.subject" content="stored procedures, invoking using embedded CALL, CALL statement, stored procedure, statements, CALL, examples, embedded CALL, invoking stored procedures, example, embedded CALL, invoking stored procedures, where no CREATE PROCEDURE exists" /> <meta name="keywords" content="stored procedures, invoking using embedded CALL, CALL statement, stored procedure, statements, CALL, examples, embedded CALL, invoking stored procedures, example, embedded CALL, invoking stored procedures, where no CREATE PROCEDURE exists" /> <meta name="DC.Relation" scheme="URI" content="rbafyinvokeproc.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="rbafystatwo" /> <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>Use embedded CALL statement where no procedure definition exists</title> </head> <body id="rbafystatwo"><a name="rbafystatwo"><!-- --></a> <!-- Java sync-link --><script language="Javascript" src="../rzahg/synch.js" type="text/javascript"></script> <h1 class="topictitle1">Use embedded CALL statement where no procedure definition exists</h1> <div><p>A static CALL statement without a corresponding CREATE PROCEDURE statement is processed with the following rules.</p> <div class="section"><ul><li>All host variable arguments are treated as INOUT type parameters.</li> <li>The CALL type is GENERAL (no indicator argument is passed).</li> <li>The program to call is determined based on the procedure name specified on the CALL, and, if necessary, the naming convention.</li> <li>The language of the program to call is determined based on information retrieved from the system about the program.</li> </ul> </div> <div class="section"><h4 class="sectiontitle">Example: Embedded CALL statement where no procedure definition exists</h4><p>The following is a PL/I example of an embedded CALL statement where no procedure definition exists: </p> <pre>DCL HV2 <strong>CHAR</strong>(10); : EXEC SQL <strong>CALL</strong> P2 (:HV2); : </pre> </div> <div class="section"><p>When the CALL statement is issued, DB2<sup>®</sup> SQL for <span class="keyword">iSeries™</span> attempts to find the program based on standard SQL naming conventions. For the above example, assume that the naming option of *SYS (system naming) is used and that a DFTRDBCOL parameter was not specified on the CRTSQLPLI command. In this case, the library list is searched for a program named P2. Since the call type is GENERAL, no additional argument is passed to the program for indicator variables.</p> </div> <div class="section"> <div class="note"><span class="notetitle">Note:</span> If an indicator variable is specified on the CALL statement and its value is less than zero when the CALL statement is executed, an error results because there is no way to pass the indicator to the procedure.</div> </div> <div class="section"><p>Assuming program P2 is found in the library list, the contents of host variable HV2 are passed in to the program on the CALL and the argument returned from P2 is mapped back to the host variable after P2 has completed execution.</p> </div> <div class="section"><div class="p">For numeric constants passed on a CALL statement, the following rules apply: <ul><li>All integer constants are passed as fullword binary integers. </li> <li>All decimal constants are passed as packed decimal values. Precision and scale are determined based on the constant value. For instance, a value of 123.45 is passed as a packed decimal(5,2). Likewise, a value of 001.01 is also passed with a precision of 5 and a scale of 2. </li> <li>All floating point constants are passed as double-precision floating point.</li> </ul> </div> </div> <div class="section"><div class="p">Special registers specified on a dynamic CALL statement are passed as follows:<dl><dt class="dlterm">CURRENT DATE </dt> <dd>Passed as a 10-byte character string in ISO format.</dd> <dt class="dlterm">CURRENT DEGREE</dt> <dd>Passed as a 5-byte character string.</dd> <dt class="dlterm">CURRENT TIME</dt> <dd>Passed as an 8-byte character string in ISO format.</dd> <dt class="dlterm">CURRENT TIMEZONE</dt> <dd>Passed as a packed decimal number with a precision of 6 and a scale of 0. </dd> <dt class="dlterm">CURRENT TIMESTAMP</dt> <dd>Passed as a 26-byte character string in IBM SQL format.</dd> <dt class="dlterm">CURRENT SCHEMA </dt> <dd>Passed as an 128-byte varying length character string.</dd> <dt class="dlterm">CURRENT SERVER</dt> <dd>Passed as an 18-byte varying length character string.</dd> <dt class="dlterm">USER</dt> <dd>Passed as an 18-byte varying length character string.</dd> <dt class="dlterm">CURRENT PATH </dt> <dd>Passed as a 3483-byte varying length character string. </dd> <dt class="dlterm">SESSION_USER</dt> <dd>Passed as a 128-byte varying length character string.</dd> <dt class="dlterm">SYSTEM_USER</dt> <dd>Passed as a 128-byte varying length character string.</dd> </dl> </div> </div> </div> <div> <div class="familylinks"> <div class="parentlink"><strong>Parent topic:</strong> <a href="rbafyinvokeproc.htm" title="The SQL CALL statement calls a stored procedure.">Invoke a stored procedure</a></div> </div> </div> </body> </html>