Example: LOBLOC.SQC in C

 #include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "util.h"
 
EXEC SQL INCLUDE SQLCA;
 
#define  CHECKERR(CE_STR)   if (check_error (CE_STR, &sqlca) != 0) return 1;
 
int main(int argc, char *argv[]) {
 
#ifdef DB2MAC
   char * bufptr;
#endif
 
   EXEC SQL BEGIN DECLARE SECTION; 1
      char number[7];
      long deptInfoBeginLoc;
      long deptInfoEndLoc;
      SQL TYPE IS CLOB_LOCATOR resume;
      SQL TYPE IS CLOB_LOCATOR deptBuffer;
      short lobind;
      char buffer[1000]="";
      char userid[9];
      char passwd[19];
   EXEC SQL END DECLARE SECTION;
 
   printf( "Sample C program: LOBLOC\n" );
 
   if (argc == 1) {
      EXEC SQL CONNECT TO sample;
	  CHECKERR ("CONNECT TO SAMPLE");
   }
   else if (argc == 3) { 
      strcpy (userid, argv[1]);
      strcpy (passwd, argv[2]);
      EXEC SQL CONNECT TO sample USER :userid USING :passwd;
      CHECKERR ("CONNECT TO SAMPLE");
   }
   else {
      printf ("\nUSAGE: lobloc [userid passwd]\n\n");
      return 1;
   } /* endif */
   
   /* Employee A10030 is not included in the following select, because 
      the lobeval program manipulates the record for A10030 so that it is 
      not compatible with lobloc */
 
   EXEC SQL DECLARE c1 CURSOR FOR
            SELECT empno, resume FROM emp_resume WHERE resume_format='ascii' 
            AND empno <> 'A00130'; 
 
   EXEC SQL OPEN c1;
   CHECKERR ("OPEN CURSOR");
 
   do {
      EXEC SQL FETCH c1 INTO :number, :resume :lobind;  2
      if (SQLCODE != 0) break;
      if (lobind < 0) {
         printf ("NULL LOB indicated\n");
      } else {
         /* EVALUATE the LOB LOCATOR */
         /* Locate the beginning of "Department Information" section */
         EXEC SQL VALUES (POSSTR(:resume, 'Department Information'))
            INTO :deptInfoBeginLoc;
         CHECKERR ("VALUES1");
 
         /* Locate the beginning of "Education" section (end of "Dept.Info" */
         EXEC SQL VALUES (POSSTR(:resume, 'Education'))
            INTO :deptInfoEndLoc;
         CHECKERR ("VALUES2");
 
         /* Obtain ONLY the "Department Information" section by using SUBSTR */
         EXEC SQL VALUES(SUBSTR(:resume, :deptInfoBeginLoc,
            :deptInfoEndLoc - :deptInfoBeginLoc)) INTO :deptBuffer;
         CHECKERR ("VALUES3");
 
         /* Append the "Department Information" section to the :buffer var. */
         EXEC SQL VALUES(:buffer || :deptBuffer) INTO :buffer;
         CHECKERR ("VALUES4");
      } /* endif */
   } while ( 1 );
 
#ifdef DB2MAC     
   /* Need to convert the newline character for the Mac */
   bufptr = &(buffer[0]);
   while ( *bufptr != '\0' ) {
      if ( *bufptr == 0x0A ) *bufptr = 0x0D;
	  bufptr++;
   }
#endif
      
   printf ("%s\n",buffer);
 
   EXEC SQL FREE LOCATOR :resume, :deptBuffer; 3
   CHECKERR ("FREE LOCATOR");
 
   EXEC SQL CLOSE c1;
   CHECKERR ("CLOSE CURSOR");
 
   EXEC SQL CONNECT RESET;
   CHECKERR ("CONNECT RESET");
   return 0;
}
/* end of program : LOBLOC.SQC */