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| When technology complements business | Embedded SQL Example, Item File |
| Copyright © 1987-2008 SimoTime Enterprises, LLC All Rights Reserved | http://www.simotime.com |
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This example uses embedded SQL in a COBOL program to update a row within a table. This example sequentially reads the records in a VSAM, Keyed-Sequential-Data-Set (KSDS) and uses the information to update the relational data base. If an existing row with a matching primary key cannot be selected then a new row will be inserted. In the world of programming there are many ways to solve a problem. This suite of programs is provided as a COBOL programming example of one of the possible solutions.
This suite of samples programs will run on the following platforms.
| 1. | Executes on Windows/2000, Windows/NT and Windows/XP using Micro Focus Net Express and the CMD file provided. |
| 2. | Executes on Windows/2000, Windows/NT and Windows/XP using Micro Focus Mainframe Express and the JCL member provided. |
| 3. | May be ported to run on the UNIX platforms supported by Micro Focus COBOL. |
The following diagram is an overview of how the demonstration program fits into the example. The BLUE boxes are unique to the mainframe and Micro Focus Mainframe Express. The RED boxes are unique to the PC with Windows and Micro Focus Net Express. The GREEN boxes are platform independent and will execute on the mainframe or a PC with Windows. Also, the GREEN boxes may be ported to a UNIX platform that is supported by Micro Focus COBOL.
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Read an Indexed file and update or insert a row into a relational data base | ||||||||||||||||||||||||||||||||||||||||||||||
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End-of-Job | ||||||||||||||||||||||||||||||||||||||||||||||||||
The main program (ITQUP1C1) will read an Indexed file (ITEMMAST) and use this information to update an existing row in a relational data base (ITEMRDB1). If a row with a matching key does not exist then a new row will be inserted.
The following is the Windows Command file (ITQUP1E1.CMD) that is required to run as a job on a PC using Micro Focus Net Express.
@echo OFF
rem * *******************************************************************
rem * This program is provided by: *
rem * SimoTime Enterprises, LLC *
rem * (C) Copyright 1987-2006 All Rights Reserved *
rem * Web Site URL: http://www.simotime.com *
rem * e-mail: helpdesk@simotime.com *
rem * *******************************************************************
rem *
rem * Text - COBOL with embedded SQL to Update rows in a table
rem * Author - SimoTime Enterprises
rem * Date - November 11, 2003
rem * Version - 04.03.12
rem *
rem * This set of programs illustrate the use of embedded SQL in a COBOL
rem * program that Update rows in a Table.
rem *
rem * This technique provides for the use of a single COBOL source
rem * program that will run on ZOS, Windows or Unix.
rem *
rem * This set of programs will run on a Personal Computer with Windows
rem * and Micro Focus Net Express or Mainframe Express.
rem *
rem *
rem * ************
rem * * ITQUP1E1 *
rem * ********cmd*
rem * *
rem * *
rem * ************ ************ ************
rem * * ITEMMAST *-----* ITQUP1C1 *-----* ITEMRDB1 *
rem * ********ksd* ********cbl* ********rdb*
rem * *
rem * *
rem * ************
rem * * EOJ *
rem * ************
echo *
echo * The SQL Server must be started prior to executing this command.
echo *
set JobStatus=0000
set SYSLOG=c:\SimoNXE4\AN01\DataWrk1\SysLogT1.TXT
SimoEXEC Note *******************************************************ITQUP1E1
SimoEXEC Note Starting JobName ITQUP1E1
set ITEMMAST=c:\SimoNXE4\AN01\DataIdxA\ITEMMAST.DAT
SimoEXEC EXEC ITQUP1C1
if errorlevel = 1 set JobStatus=0001
if not "%JobStatus%" == "0000" goto :EojNOK
:EojAOK
SimoEXEC Note Finished JobName ITQUP1E1
goto :End
:EojNOK
SimoEXEC Note ABENDING JobName ITQUP1E1
SimoEXEC Note ABENDING Message JobStatus %JobStatus%
goto :End
:End
if not "%1" == "nopause" pause
The following is the mainframe JCL (ITQUP1J1.JCL) that is required to run as a job on the mainframe or as a Mainframe Express project on the PC.
//ITQUP1J1 JOB SIMOTIME,ACCOUNT,CLASS=1,MSGCLASS=0,NOTIFY=CSIP1
//* *******************************************************************
//* This program is provided by: *
//* SimoTime Enterprises, LLC *
//* (C) Copyright 1987-2006 All Rights Reserved *
//* Web Site URL: http://www.simotime.com *
//* e-mail: helpdesk@simotime.com *
//* *******************************************************************
//*
//* TEXT - Execute a COBOL program to UPDATE data within a Table.
//* AUTHOR - SimoTime Enterprises
//* DATE - January 01, 1989
//*
//* This set of programs illustrate the use a COBOL program with
//* embedded SQL syntax. This program will UPDATE rows into a table.
//*
//* This set of programs will run on a mainframe under ZOS or on
//* a personal computer running Windows and Mainframe Express (MFE)
//* by Micro Focus.
//*
//* ************
//* * ITQUP1J1 *
//* ********jcl*
//* *
//* *
//* ************
//* * IKJEFT01 *
//* ********dbm*
//* *
//* *
//* ************ ************ ************
//* * ITEMMAST *-----* ITQUP1C1 *-----* ITEMRDB1 *
//* ********ksd* ********cbl* ********rdb*
//* *
//* *
//* ************
//* * EOJ *
//* ************
//*
//* *******************************************************************
//* Step 1 of 1 this is a single step job.
//*
//STEP01 EXEC PGM=IKJEFT01
//ITEMMAST DD DSN=SIMOTIME.DATA.ITEMMAST,DISP=SHR
//SYSPRINT DD SYSOUT=*
//SYSTSPRT DD SYSOUT=*
//SYSOUT DD SYSOUT=*
//SYSTSIN DD *
DSN SYSTEM (DSN)
RUN PROG (ITQUP1C1)
END
//
The following (ITQUP1C1.CBL) is a sample of the COBOL demonstration program.
IDENTIFICATION DIVISION.
PROGRAM-ID. ITQUP1C1.
AUTHOR. SIMOTIME ENTERPRISES.
*****************************************************************
* Copyright (C) 1987-2006 SimoTime Enterprises, LLC. *
* *
* All rights reserved. Unpublished, all rights reserved under *
* copyright law and international treaty. Use of a copyright *
* notice is precautionary only and does not imply publication *
* or disclosure. *
* *
* Permission to use, copy, modify and distribute this software *
* for any commercial purpose requires a fee to be paid to *
* SimoTime Enterprises. Once the fee is received by SimoTime *
* the latest version of the software will be delivered and a *
* license will be granted for use within an enterprise, *
* provided the SimoTime copyright notice appear on all copies *
* of the software. The SimoTime name or Logo may not be used *
* in any advertising or publicity pertaining to the use of the *
* software without the written permission of SimoTime *
* Enterprises. *
* *
* Permission to use, copy and modify this software for a *
* non-commercial purpose and without fee is hereby granted, *
* provided the SimoTime copyright notice appear on all copies *
* of the software. The SimoTime name or Logo may not be used *
* in any advertising or publicity pertaining to the use of the *
* software without the written permission of SimoTime *
* Enterprises. *
* *
* SimoTime Enterprises makes no warranty or representations *
* about the suitability of the software for any purpose. It is *
* provided "AS IS" without any express or implied warranty, *
* including the implied warranties of merchantability, fitness *
* for a particular purpose and non-infringement. SimoTime *
* Enterprises shall not be liable for any direct, indirect, *
* special or consequential damages resulting from the loss of *
* use, data or projects, whether in an action of contract or *
* tort, arising out of or in connection with the use or *
* performance of this software *
* *
* SimoTime Enterprises *
* 15 Carnoustie Drive *
* Novato, CA 94949-5849 *
* 415.883.6565 *
* *
* RESTRICTED RIGHTS LEGEND *
* Use, duplication, or disclosure by the Government is subject *
* to restrictions as set forth in subparagraph (c)(1)(ii) of *
* the Rights in Technical Data and Computer Software clause at *
* DFARS 52.227-7013 or subparagraphs (c)(1) and (2) of *
* Commercial Computer Software - Restricted Rights at 48 *
* CFR 52.227-19, as applicable. Contact SimoTime Enterprises, *
* 15 Carnoustie Drive, Novato, CA 94949-5849. *
*****************************************************************
* This base program was generated by SimoZAPS *
* A product of SimoTime Enterprises *
* Our e-mail address is: helpdesk@simotime.com *
* Also, visit our Web Site at http://www.simotime.com *
* *
* Record Record Key *
* Function Name Organization Format Max-Min Pos-Len *
* INPUT ITEMMAST SEQUENTIAL FIXED 00080 *
* OUTPUT CSVPUTD1 ASCII/CRLF VARIABLE 00080 *
* *
*****************************************************************
ENVIRONMENT DIVISION.
INPUT-OUTPUT SECTION.
FILE-CONTROL.
* The LINE SEQUENTIAL file organization is Micro Fcus
* syntax for an ASCII/Text file.
SELECT ITEMMAST-FILE ASSIGN to ITEMMAST
ORGANIZATION is indexed
ACCESS MODE is SEQUENTIAL
RECORD KEY is ITEM-NUMBER
FILE STATUS is ITEMMAST-STATUS.
*****************************************************************
DATA DIVISION.
FILE SECTION.
FD ITEMMAST-FILE.
COPY ITEMCB01.
WORKING-STORAGE SECTION.
*****************************************************************
* Data-structure for Title and Copyright...
* ------------------------------------------------------------
01 SIM-TITLE.
05 T1 pic X(11) value '* ITQUP1C1 '.
05 T2 pic X(34) value 'Read KSDS, Update or Insert SQL '.
05 T3 pic X(10) value ' v04.12.14'.
05 T4 pic X(24) value ' http://www.simotime.com'.
01 SIM-COPYRIGHT.
05 C1 pic X(11) value '* ITQUP1C1 '.
05 C2 pic X(20) value 'Copyright 1987-2006 '.
05 C3 pic X(28) value ' SimoTime Enterprises, LLC '.
05 C4 pic X(20) value ' All Rights Reserved'.
01 SIM-THANKS-01.
05 C1 pic X(11) value '* ITQUP1C1 '.
05 C2 pic X(32) value 'Thank you for using this sample '.
05 C3 pic X(32) value 'by SimoTime Enterprises, LLC '.
05 C4 pic X(04) value ' '.
01 SIM-THANKS-02.
05 C1 pic X(11) value '* ITQUP1C1 '.
05 C2 pic X(32) value 'Please send comments or suggesti'.
05 C3 pic X(32) value 'ons to helpdesk@simotime.com '.
05 C4 pic X(04) value ' '.
01 ITEMMAST-STATUS.
05 ITEMMAST-STATUS-L pic X.
05 ITEMMAST-STATUS-R pic X.
01 ITEMMAST-EOF pic X value 'N'.
01 ITEMMAST-OPEN-FLAG pic X value 'C'.
01 CSVPUTD1-STATUS.
05 CSVPUTD1-STATUS-L pic X.
05 CSVPUTD1-STATUS-R pic X.
01 CSVPUTD1-OPEN-FLAG pic X value 'C'.
01 IO-STATUS.
05 IO-STAT1 pic X.
05 IO-STAT2 pic X.
01 TWO-BYTES.
05 TWO-BYTES-LEFT pic X.
05 TWO-BYTES-RIGHT pic X.
01 TWO-BYTES-BINARY redefines TWO-BYTES pic 9(4) comp.
01 IO-STATUS-4 pic 9(4) value 0.
01 IO-STATUS-4A redefines IO-STATUS-4 pic X(4).
*****************************************************************
* Message Buffer used by the Z-DISPLAY-MESSAGE-TEXT routine. *
*****************************************************************
01 MESSAGE-BUFFER.
05 MESSAGE-HEADER pic X(11) value '* ITQUP1C1 '.
05 MESSAGE-TEXT.
10 MESSAGE-TEXT-1 pic X(68) value SPACES.
10 MESSAGE-TEXT-2 pic X(188) value SPACES.
01 MESSAGE-BUFFER-SIZE pic 9(3) value 267.
01 MSG-PTR pic 9(3) value 0.
01 MSG-LEN pic 9(3) value 0.
01 APPL-RESULT pic S9(9) comp.
88 APPL-AOK value 0.
88 APPL-EOF value 16.
* ------------------------------------------------------------
EXEC SQL BEGIN DECLARE SECTION END-EXEC.
EXEC SQL INCLUDE ITEMCQ01 END-EXEC.
EXEC SQL end DECLARE SECTION END-EXEC.
EXEC SQL INCLUDE SQLCA END-EXEC.
*****************************************************************
PROCEDURE DIVISION.
perform Z-POST-COPYRIGHT
perform ITEMMAST-OPEN
perform until ITEMMAST-STATUS not = '00'
perform ITEMMAST-READ
* If a successful read of the input file
* and the input item number is not equal to SPACES
* then create an output.
if ITEMMAST-STATUS = '00'
and ITEM-NUMBER not = SPACES
display ITEM-NUMBER ' - ' ITEM-DESCRIPTION
move ITEM-RECORD to ITQ1-RECORD
perform ITEMRDB1-SELECT
if SQLCODE = ZERO
perform MOVE-DATA-FOR-UPDATE
perform ITEMRDB1-UPDATE
else
perform MOVE-DATA-FOR-UPDATE
perform ITEMRDB1-INSERT
end-if
end-if
end-perform
perform ITEMMAST-CLOSE
perform Z-THANK-YOU
GOBACK.
*****************************************************************
MOVE-DATA-FOR-UPDATE.
move ITEM-NUMBER to ITQ1-NUMBER
move ITEM-DESCRIPTION to ITQ1-DESCRIPTION
move ITEM-UNIT-OF-MEASURE to ITQ1-UNIT-OF-MEASURE
move ITEM-COST to ITQ1-COST
move ITEM-PRICE to ITQ1-PRICE
exit.
*****************************************************************
ITEMRDB1-SELECT.
EXEC SQL
SELECT ITQ1_NUMBER,
ITQ1_DESCRIPTION,
ITQ1_UNIT_MEASURE,
ITQ1_COST,
ITQ1_PRICE
INTO :ITQ1-NUMBER,
:ITQ1-DESCRIPTION,
:ITQ1-UNIT-OF-MEASURE,
:ITQ1-COST,
:ITQ1-PRICE
FROM ITEMRDB1
WHERE ITQ1_NUMBER = :ITQ1-NUMBER
END-EXEC
if SQLCODE NOT = ZERO
initialize ITQ1-RECORD
end-if
exit.
*---------------------------------------------------------------*
ITEMRDB1-INSERT.
EXEC SQL
INSERT into ITEMRDB1
(
ITQ1_NUMBER,
ITQ1_DESCRIPTION,
ITQ1_UNIT_MEASURE,
ITQ1_COST,
ITQ1_PRICE
)
VALUES
(
:ITQ1-NUMBER,
:ITQ1-DESCRIPTION,
:ITQ1-UNIT-OF-MEASURE,
:ITQ1-COST,
:ITQ1-PRICE
)
END-EXEC
if SQLCODE = 0
display 'INSERTED ON INSERT FOR ITEMMAST '
'SQLCODE = ' SQLCODE
'ITEM = ' ITQ1-NUMBER
else
display 'ABENDING ON INSERT FOR ITEMMAST '
'SQLCODE = ' SQLCODE
'ITEM = ' ITQ1-NUMBER
add 16 to ZERO giving RETURN-CODE
end-if
exit.
*---------------------------------------------------------------*
ITEMRDB1-UPDATE.
EXEC SQL
UPDATE ITEMRDB1
SET ITQ1_NUMBER = :ITQ1-NUMBER,
ITQ1_DESCRIPTION = :ITQ1-DESCRIPTION,
ITQ1_UNIT_MEASURE = :ITQ1-UNIT-OF-MEASURE,
ITQ1_COST = :ITQ1-COST,
ITQ1_PRICE = :ITQ1-PRICE
WHERE ITQ1_NUMBER = :ITQ1-NUMBER
END-EXEC.
if SQLCODE = 0
display 'Finished UPDATING of ITEMRDB1 for item '
ITQ1-NUMBER
else
display 'ABENDING OF UPDATE FOR ITEMRDB1 '
'SQLCODE = ' SQLCODE
'ITEM = ' ITQ1-NUMBER
add 16 to ZERO giving RETURN-CODE
end-if
exit.
*****************************************************************
* I/O ROUTINES FOR ITEMMAST... *
*****************************************************************
ITEMMAST-CLOSE.
add 8 to ZERO giving APPL-RESULT.
close ITEMMAST-FILE
if ITEMMAST-STATUS = '00'
subtract APPL-RESULT from APPL-RESULT
else
add 12 to ZERO giving APPL-RESULT
end-if
if APPL-AOK
CONTINUE
else
move 'ITEMMAST-Failure-CLOSE...' to MESSAGE-TEXT
perform Z-DISPLAY-MESSAGE-TEXT
move ITEMMAST-STATUS to IO-STATUS
perform Z-DISPLAY-IO-STATUS
perform Z-ABEND-PROGRAM
end-if
exit.
*---------------------------------------------------------------*
ITEMMAST-READ.
read ITEMMAST-FILE
if ITEMMAST-STATUS = '00'
subtract APPL-RESULT from APPL-RESULT
else
if ITEMMAST-STATUS = '10'
add 16 to ZERO giving APPL-RESULT
else
add 12 to ZERO giving APPL-RESULT
end-if
end-if
if APPL-AOK
CONTINUE
else
if APPL-EOF
move 'Y' to ITEMMAST-EOF
else
move 'ITEMMAST-Failure-GET...' to MESSAGE-TEXT
perform Z-DISPLAY-MESSAGE-TEXT
move ITEMMAST-STATUS to IO-STATUS
perform Z-DISPLAY-IO-STATUS
perform Z-ABEND-PROGRAM
end-if
end-if
exit.
*---------------------------------------------------------------*
ITEMMAST-OPEN.
add 8 to ZERO giving APPL-RESULT.
open input ITEMMAST-FILE
if ITEMMAST-STATUS = '00'
subtract APPL-RESULT from APPL-RESULT
move 'O' to ITEMMAST-OPEN-FLAG
else
add 12 to ZERO giving APPL-RESULT
end-if
if APPL-AOK
CONTINUE
else
move 'ITEMMAST-Failure-OPEN...' to MESSAGE-TEXT
perform Z-DISPLAY-MESSAGE-TEXT
move ITEMMAST-STATUS to IO-STATUS
perform Z-DISPLAY-IO-STATUS
perform Z-ABEND-PROGRAM
end-if
exit.
*****************************************************************
* The following Z-ROUTINES provide administrative functions *
* for this program. *
*****************************************************************
*
*****************************************************************
* ABEND the program, post a message to the console and issue *
* a STOP RUN. *
*****************************************************************
Z-ABEND-PROGRAM.
if MESSAGE-TEXT not = SPACES
perform Z-DISPLAY-MESSAGE-TEXT
end-if
move 'PROGRAM-IS-ABENDING...' to MESSAGE-TEXT
perform Z-DISPLAY-MESSAGE-TEXT
add 12 to ZERO giving RETURN-CODE
STOP RUN
exit.
*****************************************************************
* Display CONSOLE messages... *
*****************************************************************
Z-DISPLAY-MESSAGE-TEXT.
display MESSAGE-BUFFER upon console
move all SPACES to MESSAGE-TEXT
exit.
*****************************************************************
* Display the file status bytes. This routine will display as *
* four digits. If the full two byte file status is numeric it *
* will display as 00nn. If the 1st byte is a numeric nine (9) *
* the second byte will be treated as a binary number and will *
* display as 9nnn. *
*****************************************************************
Z-DISPLAY-IO-STATUS.
if IO-STATUS not NUMERIC
or IO-STAT1 = '9'
subtract TWO-BYTES-BINARY from TWO-BYTES-BINARY
move IO-STAT2 to TWO-BYTES-RIGHT
add TWO-BYTES-BINARY to ZERO giving IO-STATUS-4
move IO-STAT1 to IO-STATUS-4A(1:1)
move 'File Status is: nnnn' to MESSAGE-TEXT
move IO-STATUS-4A to MESSAGE-TEXT(17:4)
perform Z-DISPLAY-MESSAGE-TEXT
else
move '0000' to IO-STATUS-4A
move IO-STATUS to IO-STATUS-4A(3:2)
move 'File Status is: nnnn' to MESSAGE-TEXT
move IO-STATUS-4A to MESSAGE-TEXT(17:4)
perform Z-DISPLAY-MESSAGE-TEXT
end-if
exit.
*****************************************************************
Z-POST-COPYRIGHT.
display SIM-TITLE upon console
display SIM-COPYRIGHT upon console
exit.
*****************************************************************
Z-THANK-YOU.
display SIM-THANKS-01 upon console
display SIM-THANKS-02 upon console
exit.
*****************************************************************
* This program is provided by: *
* SimoTime Enterprises, LLC *
* (C) Copyright 1987-2006 All Rights Reserved *
* Web Site URL: http://www.simotime.com *
* e-mail: helpdesk@simotime.com *
*****************************************************************
The purpose of this program is to provide examples using embedded SQL in a COBOL program to create, manipulate and delete relational data bases.
Permission to use, copy, modify and distribute this software for any commercial purpose requires a fee to be paid to SimoTime Enterprises. Once the fee is received by SimoTime the latest version of the software will be delivered and a license will be granted for use within an enterprise, provided the SimoTime copyright notice appear on all copies of the software. The SimoTime name or Logo may not be used in any advertising or publicity pertaining to the use of the software without the written permission of SimoTime Enterprises.
Permission to use, copy, modify and distribute this software for a non-commercial purpose and without fee is hereby granted, provided the SimoTime copyright notice appear on all copies of the software. The SimoTime name or Logo may not be used in any advertising or publicity pertaining to the use of the software without the written permission of SimoTime Enterprises.
SimoTime Enterprises makes no warranty or representations about the suitability of the software for any purpose. It is provided "AS IS" without any express or implied warranty, including the implied warranties of merchantability, fitness for a particular purpose and non-infringement. SimoTime Enterprises shall not be liable for any direct, indirect, special or consequential damages resulting from the loss of use, data or projects, whether in an action of contract or tort, arising out of or in connection with the use or performance of this software.
You may download this example at http://www.simotime.com/sim4dzip.htm#ZipsforSQL or view the complete list of SimoTime Examples at http://www.simotime.com/sim4dzip.htm.
Note: You must be attached to the Internet to download a Z-Pack or view the list.
Check out The VSAM - QSAM Connection for more examples of mainframe VSAM and QSAM accessing techniques with sample code.
This document provides a quick summary of the File Status Key for VSAM data sets and QSAM files.
Check out The SQL Connection for more examples of mainframe Relational Data Base management and accessing techniques with sample code.
The example for Create a Table uses embedded SQL in a COBOL program to create a data base for the item information.
The example for Insert a Row uses embedded SQL in a COBOL program to insert data into a table of an existing data base.
The example for Sequential Processing uses embedded SQL in a COBOL program to insert data into a table of an existing data base.
The example for Delete a Table uses embedded SQL in a COBOL program to delete a data base for the item information.
Check out The SimoTime Library for a wide range of topics for Programmers, Project Managers and Software Developers.
To review all the information available on this site start at The SimoTime Home Page .
If you have any questions, suggestions or comments please call or send an e-mail to: helpdesk@simotime.com
We appreciate your comments and feedback.
Founded in 1987, SimoTime Enterprises is a privately owned, Limited Liability Corporation located in Novato, California. We specialize in the creation and deployment of business applications using new or existing technologies and services. We have a team of individuals that understand the broad range of technologies being used in today's environments. This includes the smallest thin client using the Internet and the very large mainframe systems. There is more to making the Internet work for your company's business than just having a nice looking WEB site. It is about combining the latest technologies and existing technologies with practical business experience. It's about the business of doing business and looking good in the process. Quite often, to reach larger markets or provide a higher level of service to existing customers it requires the newer Internet technologies to work in a complementary manner with existing corporate mainframe systems. Whether you want to use the Internet to expand into new market segments or as a delivery vehicle for existing business functions simply give us a call or check the web site at http://www.simotime.com
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| When technology complements business |