Quellcode-Bibliothek

^© Kompilation durch diese Firma

[Weder Korrektheit noch Funktionsfähigkeit der Software werden zugesichert.]

Datei: Sprache: Cobol

Original von: verschiedene^©

      ***********************************************************************
      ** Licensed Materials - Property of IBM
      **
      ** Governed under the terms of the International
      ** License Agreement for Non-Warranted Sample Code.
      **
      ** (C) COPYRIGHT International Business Machines Corp. 1995 - 2002
      ** All Rights Reserved.
      **
      ** US Government Users Restricted Rights - Use, duplication or
      ** disclosure restricted by GSA ADP Schedule Contract with IBM Corp.
      ***********************************************************************
      **
      ** SOURCE FILE NAME: advsql.sqb
      **
      ** SAMPLE: How to read table data using CASE
      **
      **         This sample shows how to read table data using advanced
      **         SQL statements with CASE.
      **
      ** SQL STATEMENTS USED:
      **         BEGIN DECLARE SECTION
      **         END DECLARE SECTION
      **         CONNECT
      **         DECLARE
      **         FETCH
      **         OPEN
      **
      ** OUTPUT FILE: advsql.out (available in the online documentation)
      ***********************************************************************
      **
      ** For more information on the sample programs, see the README file.
      **
      ** For information on developing COBOL applications, see the
      ** Application Development Guide.
      **
      ** For information on using SQL statements, see the SQL Reference.
      **
      ** For the latest information on programming, compiling, and running
      ** DB2 applications, visit the DB2 application development website:
      **     http://www.software.ibm.com/data/db2/udb/ad
      ***********************************************************************

       Identification Division.
       Program-ID. "advsql".

       Data Division.
       Working-Storage Section.

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

           EXEC SQL BEGIN DECLARE SECTION END-EXEC.

       01 userid            pic x(8).
       01 passwd.
         49 passwd-length   pic s9(4) comp-5 value 0.
         49 passwd-name     pic x(18).
       01 lname.
        49 lname-length     pic s9(4) comp-5 value 15.
        49 lname-name       pic x(15).
       01 wdept             pic x(3).

           EXEC SQL END DECLARE SECTION END-EXEC.

       77 errloc          pic x(80).
       77 counter         pic s9(4) comp-5 value 0.

       Procedure Division.
       Main Section.
           display "Sample COBOL program: ADVSQL".
           display "the statment to be executed:".
           display " ".
           display "SELECT LASTNAME, WORKDEPT FROM EMPLOYEE".
           display " WHERE CASE".
           display " WHEN BONUS+COMM = 0 THEN NULL".
           display " ELSE SALARY/(BONUS+COMM)".
           display " END > 10".
           display " ".

      * Get database connection information.
           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 " ".

           display " ".

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

      * declare the cursor for the advanced SQL statement.
           EXEC SQL DECLARE c1 CURSOR FOR
                    SELECT LASTNAME, WORKDEPT FROM employee
                    WHERE CASE
                       WHEN BONUS+COMM = 0 THEN NULL
                       ELSE SALARY/(BONUS+COMM)
                    END > 10 END-EXEC.

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

           display "LASTNAME WORKDEPT".

      * FETCH the rows from the table corresponding to the SQL statement.
           perform Fetch-Loop thru End-Fetch-Loop
              until SQLCODE not equal 0.

           display " ", counter, " record(s) selected".

           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.
           move spaces to lname-name.
           EXEC SQL FETCH c1 INTO :lname, :wdept END-EXEC.

           if SQLCODE not equal 0
              go to End-Fetch-Loop.
           display lname-name, " ", wdept.

           add 1 to counter.
       End-Fetch-Loop. exit.

       End-Prog.
           stop run.

¤ Dauer der Verarbeitung: 0.1 Sekunden (vorverarbeitet) ¤

Download des Quellennavigators
Download des sprechenden Kalenders
in der Quellcodebibliothek suchen

Haftungshinweis

Die Informationen auf dieser Webseite wurden nach bestem Wissen sorgfältig zusammengestellt. Es wird jedoch weder Vollständigkeit, noch Richtigkeit, noch Qualität der bereit gestellten Informationen zugesichert.

Bemerkung:

Die farbliche Syntaxdarstellung ist noch experimentell.