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Quellcode-Bibliothek
© Kompilation durch diese Firma
[Weder Korrektheit noch Funktionsfähigkeit der Software werden zugesichert.]
Datei:
tt
Sprache: Cobol
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***********************************************************************
** 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: dynamic.sqb
**
** SAMPLE: How to update table data with cursor dynamically
**
** This sample shows how to update table data with cursor
** using dynamic SQL statement. This program shows how
** to retrieve all the entries in the system table
** sysibm.systables that do not have the value "STAFF" in
** the "name" column.
**
** SQL STATEMENTS USED:
** BEGIN DECLARE SECTION
** END DECLARE SECTION
** CONNECT
** DECLARE
** PREPARE
** FETCH
** OPEN
**
** OUTPUT FILE: dynamic.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. "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).
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.
move "PREPARE" to errloc.
call "checkerr" using SQLCA errloc.
EXEC SQL DECLARE c1 CURSOR FOR s1 END-EXEC.
move "STAFF" to parm-var.
EXEC SQL OPEN c1 USING :parm-var END-EXEC.
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.
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.
if SQLCODE not equal 0
go to End-Fetch-Loop.
display "TABLE = ", table-name.
End-Fetch-Loop. exit.
End-Prog.
stop run.
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