JCL, Procedure Overrides
Overrides and Parameter Substitution
  Table of Contents  v-16.01.01 - jclovr01.htm 
  Introduction
  JCL Members
  Create Files (a multi-step Job)
  Delete Files (use with Caution)
  JCL Procedures (or PROC's)
  A PROC to Create DATA10
  A PROC to Create DATA20
  A PROC to Create DATA30
  Partitioned Data Set Members
  PDS Member, Content for DATA10
  PDS Member, Content for DATA20
  PDS Member, Content for DATA30
  Summary
  Software Agreement and Disclaimer
  Downloads and Links
  Current Server or Internet Access
  Internet Access Required
  Glossary of Terms
  Comments or Feedback
  Company Overview
The SimoTime Home Page 

Table of Contents Previous Section Next Section Introduction

The purpose of this example is to show how to use ZOS (or MVS) JCL and Procedures (or PROC's) with substitution parameters and overrides (or PROC override). The examples will run on an IBM Mainframe with ZOS or in a Micro Focus Environment using Mainframe Express or the Server Enterprise Edition.


We have made a significant effort to ensure the documents and software technologies are correct and accurate. We reserve the right to make changes without notice at any time. The function delivered in this version is based upon the enhancement requests from a specific group of users. The intent is to provide changes as the need arises and in a timeframe that is dependent upon the availability of resources.

Copyright © 1987-2017
SimoTime Technologies and Services
All Rights Reserved

Table of Contents Previous Section Next Section JCL Members

This example has two (2) JCL Members. The first JCL Member will show the use of "PROCedure EXECution" with parameter substitution and procedural overrides to create sequential data files using IEBGENER. The DSN and DISP used by the PROC's will be defined in the JCL Member and passed to the PROC via substitution or an override.

The second JCL Member will delete the files created by the first JCL Member. The following sections of this document will describe the JCL Members in more detail.

Table of Contents Previous Section Next Section Create Files (a multi-step Job)

This JCL Member (JCLOVRJ1.jcl) is a multi-step job that will create three sequential files. Each job step will execute a PROC to create a file. The following is a listing of the JCL Member. The embedded comments should help in understanding what the JCL Member is doing.

//JCLOVRJ1 JOB SIMOTIME,CLASS=1,MSGCLASS=0,NOTIFY=CSIP1
//* *******************************************************************
//*        This program is provided by SimoTime Technologies          *
//*           (C) Copyright 1987-2017 All Rights Reserved             *
//*             Web Site URL:   http://www.simotime.com               *
//*                   e-mail:   helpdesk@simotime.com                 *
//* *******************************************************************
//*
//* Text   - An Example of Parameter Substitution and Overrides
//* Author - SimoTime Technologies
//* Date   - January 24, 1996
//*
//* Note   - To cleanup files run JCLOVRJ9
//*
//* *******************************************************************
//* Step 1 of 3, Execute the procedure,
//*              Create DATA10 using parameter substitution with a
//*              separate SET statement.
//*
//         SET  DSNAME10=SIMOTIME.WORK.DATA10
//STEPJ010 EXEC JCLOVRP1
//*
//*
//* *******************************************************************
//* Step 2 of 3, Execute the procedure,
//*              Create DATA20 using a Procedural Override.
//*
//STEPJ020 EXEC JCLOVRP2
//STEPP20.SYSUT2 DD DSN=SIMOTIME.WORK.DATA20
//*
//* *******************************************************************
//* Step 3 of 3, Execute the procedure, Create DATA30.
//*              Use a procedural override for DISP.
//*              Use parameter substitution for DSN,
//*              Create DATA30 using parameter substitution that is
//*              passed as an item on the EXEC ststement.
//*
//STEPJ030 EXEC JCLOVRP3,DSNAME30=SIMOTIME.WORK.DATA30
//STEPP30.SYSUT2 DD DISP=(NEW,CATLG)
//*

Table of Contents Previous Section Next Section Delete Files (use with Caution)

This JCL Member (JCLOVRJ9.jcl) is a single-step job that will delete three sequential files. The IEFBR14 Program with three (3) DD statements is used. The DD statements use the DISP=(MOD,DELETE,DELETE) to delete the files. The following is a listing of the JCL Member.

//JCLOVRJ9 JOB SIMOTIME,ACCOUNT,CLASS=1,MSGCLASS=0,NOTIFY=CSIP1
//* *******************************************************************
//*        This program is provided by SimoTime Technologies          *
//*           (C) Copyright 1987-2017 All Rights Reserved             *
//*             Web Site URL:   http://www.simotime.com               *
//*                   e-mail:   helpdesk@simotime.com                 *
//* *******************************************************************
//*
//* TEXT   - Use IEFBR14 to delete filess
//* AUTHOR - SIMOTIME TECHNOLOGIES
//* DATE   - JANUARY 01, 1989
//*
//* *******************************************************************
//* Step 1 of 1, Delete any previously created sequential file...
//*
//STEP10   EXEC PGM=IEFBR14
//DATA10   DD  DSN=SIMOTIME.WORK.DATA10,DISP=(MOD,DELETE,DELETE),
//             STORCLAS=MFI,
//             SPACE=(TRK,5),
//             DCB=(RECFM=FB,LRECL=80,DSORG=PS)
//DATA20   DD  DSN=SIMOTIME.WORK.DATA20,DISP=(MOD,DELETE,DELETE),
//             STORCLAS=MFI,
//             SPACE=(TRK,5),
//             DCB=(RECFM=FB,LRECL=80,DSORG=PS)
//DATA30   DD  DSN=SIMOTIME.WORK.DATA30,DISP=(MOD,DELETE,DELETE),
//             STORCLAS=MFI,
//             SPACE=(TRK,5),
//             DCB=(RECFM=FB,LRECL=80,DSORG=PS)
//*

Table of Contents Previous Section Next Section JCL Procedures (or PROC's)

This example has three (3) PROC's. Each PROC is will create a sequential file based on the parameters or overrides provided by the JCL Member (or step within a JCL Member) that is executing the PROC.

Table of Contents Previous Section Next Section A PROC to Create DATA10

This PROC (JCLOVRP1.prc) will create a sequential file. The name of the sequential file is determined by the content of &DSNAME10 that is set by the primary JCL Member.

//* *******************************************************************
//*        JCLOVRP1.prc - a JCL Procedure Batch Job Processing        *
//*      This JCL Procedure is provided by SimoTime Technologies      *
//*           (C) Copyright 1987-2016                                 *
//*             Web Site URL:   http://www.simotime.com               *
//*                   e-mail:   helpdesk@simotime.com                 *
//* *******************************************************************
//*
//* Subject: Create a Record Sequential File, use IEBGENER
//* Author:  SimoTime Technologies
//* Date:    January 1,1998
//*
//* This PROC needs the &DSNAME10 defined by the calling JCL member...
//* //       SET DSNAME10=AAAA.BBBB.CCCC
//* //       EXEC JCLOVRP1
//*
//*********************************************************************
//JCLOVRP1 PROC
//*
//*********************************************************************
//* Step 1 of 1, Create DATA10 from Procedure JCLOVRP1,
//*              the DSN for SYSUT2 uses parameter substitution.
//*
//STEPP10  EXEC PGM=IEBGENER
//SYSPRINT DD  SYSOUT=*
//SYSIN    DD  DUMMY
//* :....1....:....2....:....3....:....4....:....5....:....6....:....7....:....8
//SYSUT1   DD  DSN=SIMOTIME.PDS.PARMLIB(JCLOVR10),DISP=SHR
//SYSUT2   DD  DSN=&DSNAME10,
//             DISP=(NEW,CATLG,DELETE),
//             STORCLAS=MFI,
//             SPACE=(TRK,5),
//             DCB=(RECFM=FB,LRECL=80,DSORG=PS)
//*
//         PEND
//*

Table of Contents Previous Section Next Section A PROC to Create DATA20

This PROC (JCLOVRP2.prc) will create a sequential file. The name of the sequential file is determined by the override that is provided by the primary JCL Member.

//* *******************************************************************
//*        JCLOVRP2.prc - a JCL Procedure Batch Job Processing        *
//*      This JCL Procedure is provided by SimoTime Technologies      *
//*           (C) Copyright 1987-2016 All Rights Reserved             *
//*             Web Site URL:   http://www.simotime.com               *
//*                   e-mail:   helpdesk@simotime.com                 *
//* *******************************************************************
//*
//* Subject: Create a Record Sequential File, use IEBGENER
//* Author:  SimoTime Technologies
//* Date:    January 1,1998
//*
//* The DSN for SYSUT2 is overridden by the primary JCL Member
//*
//*********************************************************************
//JCLOVRP1 PROC
//*
//*********************************************************************
//* Step 1 of 1, Create DATA20 from Procedure JCLOVRP2,
//*              the DSN for SYSUT2 is determined by a procedural
//*              override provided by the primary JCL Member.
//*
//STEPP20  EXEC PGM=IEBGENER
//SYSPRINT DD  SYSOUT=*
//SYSIN    DD  DUMMY
//* :....1....:....2....:....3....:....4....:....5....:....6....:....7....:....8
//SYSUT1   DD  DSN=SIMOTIME.PDS.PARMLIB(JCLOVR20),DISP=SHR
//SYSUT2   DD  DSN=SIMOTIME.DATA.JUNK,
//             DISP=(NEW,CATLG,DELETE),
//             STORCLAS=MFI,
//             SPACE=(TRK,5),
//             DCB=(RECFM=FB,LRECL=80,DSORG=PS)
//*
//         PEND
//*

Table of Contents Previous Section Next Section A PROC to Create DATA30

This PROC (JCLOVRP3.prc) will create a sequential file. The name of the sequential file is determined by the content of &DSNAME30 that is passed by the primary JCL Member. The DISP for SYSUT2 is determined by the override that is provided by the primary JCL Member. This example shows both the Parameter passing an override capability in a single job step.

//* *******************************************************************
//*        JCLOVRP3.prc - a JCL Procedure Batch Job Processing        *
//*      This JCL Procedure is provided by SimoTime Technologies      *
//*           (C) Copyright 1987-2016 All Rights Reserved             *
//*             Web Site URL:   http://www.simotime.com               *
//*                   e-mail:   helpdesk@simotime.com                 *
//* *******************************************************************
//*
//* Subject: Create a Record Sequential File, use IEBGENER
//* Author:  SimoTime Technologies
//* Date:    January 1,1998
//*
//* This PROC needs the &DSNAME30 defined by the calling JCL member...
//* //       SET DSNAME30=AAAA.BBBB.CCCC
//* //       EXEC JCLOVRP3
//*
//* The DISP is then overridden by the primary JCL Member
//*
//*********************************************************************
//JCLOVRP3 PROC
//*
//*********************************************************************
//* Step 1 of 1, Create DATA30 from Procedure JCLOVRP3,
//*              the DSN for SYSUT2 uses parameter substitution.
//*              The DISP is determined by a procedural override
//*              provided by the primary JCL Member.
//*
//STEPP30  EXEC PGM=IEBGENER
//SYSPRINT DD  SYSOUT=*
//SYSIN    DD  DUMMY
//* :....1....:....2....:....3....:....4....:....5....:....6....:....7....:....8
//SYSUT1   DD  DSN=SIMOTIME.PDS.PARMLIB(JCLOVR30),DISP=SHR
//SYSUT2   DD  DSN=&DSNAME30,
//             DISP=OLD,
//             STORCLAS=MFI,
//             SPACE=(TRK,5),
//             DCB=(RECFM=FB,LRECL=80,DSORG=PS)
//*
//         PEND
//*

Table of Contents Previous Section Next Section Partitioned Data Set Members

The data to be included in the files that are created is stored as PDS Members in a PDS (sometimes referred to as a library) named SIMOTIME.PDS.PARMLIB1. The following sections of this document describes the PDS Members in more detail.

Table of Contents Previous Section Next Section PDS Member, Content for DATA10

This PDS Member (JCLOVR10.ctl) contains a single record that will be included in the SIMOTIME.WORK.DATA10 sequential file when it is created using IEBGENER. The following is a listing of the content of the PDS Member.

Record 001 for DATA10...

Table of Contents Previous Section Next Section PDS Member, Content for DATA20

This PDS Member (JCLOVR20.ctl) contains the records that will be included in the SIMOTIME.WORK.DATA20 sequential file when it is created using IEBGENER. The following is a listing of the content of the PDS Member.

Record 001 for DATA20
Record 002 for DATA20

Table of Contents Previous Section Next Section PDS Member, Content for DATA30

This PDS Member (JCLOVR30.ctl) contains the records that will be included in the SIMOTIME.WORK.DATA30 sequential file when it is created using IEBGENER. The following is a listing of the content of the PDS Member.

Record 001 for DATA30
Record 002 for DATA30
Record 003 for DATA30

Table of Contents Previous Section Next Section Summary

This suite of JCL members and PROC's is provided as an example of overriding items in an executed Procedure from the primary JCL Member. This document may to assist as a tutorial for new programmers or as a quick reference for experienced programmers.

In the world of programming there are many ways to solve a problem. This document and the links to other documents are intended to provide a greater awareness of the Data Management and Application Processing alternatives.

The documentation and software were developed and tested on systems that are configured for a SIMOTIME environment based on the hardware, operating systems, user requirements and security requirements. Therefore, adjustments may be needed to execute the jobs and programs when transferred to a system of a different architecture or configuration.

SIMOTIME Services has experience in moving or sharing data or application processing across a variety of systems. For additional information about SIMOTIME Services or Technologies please send an e-mail to: helpdesk@simotime.com or call 415 883-6565. We appreciate hearing from you.

Table of Contents Previous Section Next Section Software Agreement and Disclaimer

Permission to use, copy, modify and distribute this software, documentation or training material for any purpose requires a fee to be paid to SimoTime Technologies. Once the fee is received by SimoTime the latest version of the software, documentation or training material 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 Technologies.

SimoTime Technologies makes no warranty or representations about the suitability of the software, documentation or learning material for any purpose. It is provided "AS IS" without any expressed or implied warranty, including the implied warranties of merchantability, fitness for a particular purpose and non-infringement. SimoTime Technologies 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, documentation or training material.

Table of Contents Previous Section Next Section Downloads and Links

This section includes links to documents with additional information that are beyond the scope and purpose of this document. The first group of documents may be available from a local system or via an internet connection, the second group of documents will require an internet connection.

Note: A SimoTime License is required for the items to be made available on a local system or server.

Table of Contents Previous Section Next Section Current Server or Internet Access

The following links may be to the current server or to the Internet.

Note: The latest versions of the SimoTime Documents and Program Suites are available on the Internet and may be accessed using the Link to Internet icon. If a user has a SimoTime Enterprise License the Documents and Program Suites may be available on a local server and accessed using the Link to Server icon.

Link to Internet   Link to Server   Explore the JCL Connection for more examples of JCL functionality with programming techniques and sample code.

Link to Internet   Link to Server   Explore how to use Procedures (or PROC's) with JCL. If a segment of JCL is used repeatedly it may be coded once as a PROC (or JCL Procedure) and then used by many different steps within the job.

Link to Internet   Link to Server   Explore how to Define and Use Variables with JCL. This suite of programs is a mainframe JCL example that will describe how to define (or name) a variable value and then use or change the variable by its referenced name.

Link to Internet   Link to Server   Explore the COBOL Connection for more examples of COBOL programming techniques and sample code.

Link to Internet   Link to Server   Explore An Enterprise System Model that describes and demonstrates how Applications that were running on a Mainframe System and non-relational data that was located on the Mainframe System were copied and deployed in a Microsoft Windows environment with Micro Focus Enterprise Server.

Link to Internet   Link to Server   Explore The ASCII and EBCDIC Translation Tables. These tables are provided for individuals that need to better understand the bit structures and differences of the encoding formats.

Link to Internet   Link to Server   Explore The File Status Return Codes to interpret the results of accessing VSAM data sets and/or QSAM files.

Table of Contents Previous Section Next Section Internet Access Required

The following links will require an internet connect.

This suite of programs and documentation is available to download for review and evaluation purposes. Other uses will require a SimoTime Software License. Link to an Evaluation zPAK Option that includes the program members, documentation and control files.

A good place to start is The SimoTime Home Page for access to white papers, program examples and product information. This link requires an Internet Connection

Explore The Micro Focus Web Site for more information about products and services available from Micro Focus. This link requires an Internet Connection.

Table of Contents Previous Section Next Section Glossary of Terms

Link to Internet   Link to Server   Explore the Glossary of Terms for a list of terms and definitions used in this suite of documents and white papers.

Table of Contents Previous Section Next Section Comments or Feedback

This document was created and is copyrighted and maintained by SimoTime Technologies.

If you have any questions, suggestions, comments or feedback please call or send an e-mail to: helpdesk@simotime.com

We appreciate hearing from you.

Table of Contents Previous Section Next Section Company Overview

SimoTime Technologies was founded in 1987 and is a privately owned company. 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. Our customers include small businesses using Internet technologies to corporations using very large mainframe systems.

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. We specialize in preparing applications and the associated data that are currently residing on a single platform to be distributed across a variety of platforms.

Preparing the application programs will require the transfer of source members that will be compiled and deployed on the target platform. The data will need to be transferred between the systems and may need to be converted and validated at various stages within the process. SimoTime has the technology, services and experience to assist in the application and data management tasks involved with doing business in a multi-system environment.

Whether you want to use the Internet to expand into new market segments or as a delivery vehicle for existing business functions or need assistance with converting non-relational data structures simply give us a call at 415 883-6565 or check the web site at http://www.simotime.com


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JCL & Procedure Overrides, Overrides and Parameter Substitution
Copyright © 1987-2017
SimoTime Technologies and Services
All Rights Reserved
When technology complements business
http://www.simotime.com