************************************************************************* 
      ** 
      ** Source File Name = dynamic.sqb  1.3 
      ** 
      ** Licensed Materials - Property of IBM 
      ** 
      ** (C) COPYRIGHT International Business Machines Corp. 1995, 1999  
      ** All Rights Reserved. 
      ** 
      ** US Government Users Restricted Rights - Use, duplication or 
      ** disclosure restricted by GSA ADP Schedule Contract with IBM Corp. 
      ** 
      ** 
      ** PURPOSE: This sample program demonstrates the use of a CURSOR. 
      **          The CURSOR is processed using dynamic SQL.  This program 
      **          will list all the entries in the system table 
      **          sysibm.systables that do not have the value "STAFF" in 
      **          the "name" column. 
      ** 
      ** For more information about these samples see the README file. 
      ** 
      ** For more information on programming in COBOL, see the: 
      **    -  "Programming in COBOL" section of the Application Development Guide. 
      ** 
      ** For more information on Building COBOL Applications, see the: 
      **    - "Building COBOL Applications" section of the Application Building Guide. 
      ** 
      ** For more information on the SQL language see the SQL Reference. 
      ** 
      ************************************************************************* 

       Identification Division.
       Program-ID. "dynamic".

       Data Division.
       Working-Storage Section.

           copy "sqlenv.cbl".
           copy "sql.cbl".
           copy "sqlca.cbl".

           EXEC SQL BEGIN DECLARE SECTION END-EXEC.
       01 table-name      pic x(20).
       01 st              pic x(80).                                    1
       01 parm-var        pic x(18).
       01 userid            pic x(8).
       01 passwd.
         49 passwd-length   pic s9(4) comp-5 value 0.
         49 passwd-name     pic x(18).
           EXEC SQL END DECLARE SECTION END-EXEC.

       77 errloc          pic x(80).

       Procedure Division.
       Main Section.
           display "Sample COBOL program: DYNAMIC".

           display "Enter your user id (default none): " 
                with no advancing.
           accept userid.

           if userid = spaces
             EXEC SQL CONNECT TO sample END-EXEC
           else
             display "Enter your password : " with no advancing
             accept passwd-name.

      * Passwords in a CONNECT statement must be entered in a VARCHAR format 
      * with the length of the input string. 
           inspect passwd-name tallying passwd-length for characters
              before initial " ".

           EXEC SQL CONNECT TO sample USER :userid USING :passwd
               END-EXEC.
           move "CONNECT TO" to errloc.
           call "checkerr" using SQLCA errloc.

           move "SELECT TABNAME FROM SYSCAT.TABLES
      -       " ORDER BY 1
      -       " WHERE TABNAME <> ?" to st.
           EXEC SQL PREPARE s1 FROM :st END-EXEC.                       2
           move "PREPARE" to errloc.
           call "checkerr" using SQLCA errloc.

           EXEC SQL DECLARE c1 CURSOR FOR s1 END-EXEC.                  3

           move "STAFF" to parm-var.
           EXEC SQL OPEN c1 USING :parm-var END-EXEC.                   4
           move "OPEN" to errloc.
           call "checkerr" using SQLCA errloc.

           perform Fetch-Loop thru End-Fetch-Loop
              until SQLCODE not equal 0.

           EXEC SQL CLOSE c1 END-EXEC.                                  6
           move "CLOSE" to errloc.
           call "checkerr" using SQLCA errloc.

           EXEC SQL COMMIT END-EXEC.
           move "COMMIT" to errloc.
           call "checkerr" using SQLCA errloc.

           EXEC SQL CONNECT RESET END-EXEC.
           move "CONNECT RESET" to errloc.
           call "checkerr" using SQLCA errloc.

       End-Main.
           go to End-Prog.

       Fetch-Loop Section.
           EXEC SQL FETCH c1 INTO :table-name END-EXEC.                 5
           if SQLCODE not equal 0
              go to End-Fetch-Loop.
           display "TABLE = ", table-name.
       End-Fetch-Loop. exit.

       End-Prog.
           stop run.