146 lines
5.4 KiB
HTML
146 lines
5.4 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 http-equiv="Content-Type" content="text/html; charset=utf-8" />
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<meta name="security" content="public" />
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<meta name="Robots" content="index,follow" />
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<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))' />
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<meta name="DC.Type" content="reference" />
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<meta name="DC.Title" content="Example: LOBLOC.SQC in C" />
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<meta name="DC.subject" content="examples, LOBLOC.SQC C program listing, LOBs (Large Objects)" />
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<meta name="keywords" content="examples, LOBLOC.SQC C program listing, LOBs (Large Objects)" />
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<meta name="DC.Relation" scheme="URI" content="rbafyexampclob.htm" />
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<meta name="copyright" content="(C) Copyright IBM Corporation 1998, 2006" />
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<meta name="DC.Rights.Owner" content="(C) Copyright IBM Corporation 1998, 2006" />
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<meta name="DC.Format" content="XHTML" />
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<meta name="DC.Identifier" content="rbafyllocc" />
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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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<!-- Use, duplication or disclosure restricted by -->
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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: LOBLOC.SQC in C</title>
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</head>
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<body id="rbafyllocc"><a name="rbafyllocc"><!-- --></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: LOBLOC.SQC in C</h1>
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<div><div class="section"><div class="note"><span class="notetitle">Note:</span> By using the code examples, you agree to the terms of the <a href="codedisclaimer.htm">Code license and disclaimer information</a>.</div>
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</div>
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<div class="example"> <pre> #include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include "util.h"
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EXEC SQL INCLUDE SQLCA;
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#define CHECKERR(CE_STR) if (check_error (CE_STR, &sqlca) != 0) return 1;
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int main(int argc, char *argv[]) {
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#ifdef DB2MAC
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char * bufptr;
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#endif
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EXEC SQL BEGIN DECLARE SECTION; <span>1</span>
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char number[7];
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long deptInfoBeginLoc;
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long deptInfoEndLoc;
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SQL TYPE IS CLOB_LOCATOR resume;
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SQL TYPE IS CLOB_LOCATOR deptBuffer;
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short lobind;
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char buffer[1000]="";
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char userid[9];
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char passwd[19];
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EXEC SQL END DECLARE SECTION;
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printf( "Sample C program: LOBLOC\n" );
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if (argc == 1) {
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EXEC SQL CONNECT TO sample;
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CHECKERR ("CONNECT TO SAMPLE");
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}
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else if (argc == 3) {
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strcpy (userid, argv[1]);
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strcpy (passwd, argv[2]);
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EXEC SQL CONNECT TO sample USER :userid USING :passwd;
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CHECKERR ("CONNECT TO SAMPLE");
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}
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else {
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printf ("\nUSAGE: lobloc [userid passwd]\n\n");
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return 1;
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} /* endif */
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/* Employee A10030 is not included in the following select, because
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the lobeval program manipulates the record for A10030 so that it is
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not compatible with lobloc */
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EXEC SQL DECLARE c1 CURSOR FOR
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SELECT empno, resume FROM emp_resume WHERE resume_format='ascii'
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AND empno <> 'A00130';
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EXEC SQL OPEN c1;
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CHECKERR ("OPEN CURSOR");
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do {
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EXEC SQL FETCH c1 INTO :number, :resume :lobind; <span>2</span>
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if (SQLCODE != 0) break;
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if (lobind < 0) {
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printf ("NULL LOB indicated\n");
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} else {
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/* EVALUATE the LOB LOCATOR */
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/* Locate the beginning of "Department Information" section */
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EXEC SQL VALUES (POSSTR(:resume, 'Department Information'))
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INTO :deptInfoBeginLoc;
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CHECKERR ("VALUES1");
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/* Locate the beginning of "Education" section (end of "Dept.Info" */
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EXEC SQL VALUES (POSSTR(:resume, 'Education'))
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INTO :deptInfoEndLoc;
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CHECKERR ("VALUES2");
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/* Obtain ONLY the "Department Information" section by using SUBSTR */
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EXEC SQL VALUES(SUBSTR(:resume, :deptInfoBeginLoc,
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:deptInfoEndLoc - :deptInfoBeginLoc)) INTO :deptBuffer;
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CHECKERR ("VALUES3");
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/* Append the "Department Information" section to the :buffer var. */
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EXEC SQL VALUES(:buffer || :deptBuffer) INTO :buffer;
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CHECKERR ("VALUES4");
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} /* endif */
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} while ( 1 );
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#ifdef DB2MAC
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/* Need to convert the newline character for the Mac */
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bufptr = &(buffer[0]);
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while ( *bufptr != '\0' ) {
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if ( *bufptr == 0x0A ) *bufptr = 0x0D;
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bufptr++;
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}
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#endif
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printf ("%s\n",buffer);
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EXEC SQL FREE LOCATOR :resume, :deptBuffer; <span>3</span>
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CHECKERR ("FREE LOCATOR");
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EXEC SQL CLOSE c1;
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CHECKERR ("CLOSE CURSOR");
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EXEC SQL CONNECT RESET;
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CHECKERR ("CONNECT RESET");
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return 0;
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}
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/* end of program : LOBLOC.SQC */</pre>
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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="rbafyexampclob.htm" title="In this example, the application program retrieves a locator for a LOB value; then it uses the locator to extract the data from the LOB value.">Example: Use a locator to work with a CLOB value</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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