Data Structure, DYNJDDB1 Generated from a COBOL Copy File

Introduction

This document was generated from a COBOL copy file using the SIMOTIME Record Layout utility program. The primary intent of the following table is to provide additional information about a file record layout using a COBOL Copy File as input. For example, the position of a field within a record is not easily determined from the COBOL Copy FIle. Also, the actual physical length for group items, packed fields, binary fields and tables is not explicitly defined. This information is calculated and provided by the SIMOTIME Record Layout utility program.

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.

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Record Structure

The physical length for the BINARY or COMP fields is calculated based on the format for an IBM Mainframe

COBOL Copy File

The following shows the content of the COBOL Copy File that defines the fields within a record structure (or record layout).

      *****************************************************************
      *               DYNJDDB1.CPY - a COBOL Copy File                *
      *  Sample Application Programming Interface (API) to obtain and *
      *     review information about the JOB and DD statements or     *
      *               dynamically allocate a data file.               *
      *                    Copyright © 2011-2013                      *
      *          Micro Focus (US), Inc. and/or its affiliates         *
      *                     All Rights Reserved                       *
      *    Please visit our Web Site at http://www.microfocus.com     *
      *                                                               *
      *    The CALL Interface is as follows...                        *
      *        move 'function' to MVS-REQUEST                         *
      *        call 'DYNAJDDI' using MVS-JOBSTEP-INFO                 *
      *                                                               *
      *    where 'function' is one of the three following keywords.   *
      *    'JOBINFO ' - Display JOB information to SYSOUT             *
      *    'GETONEDD' - Get the DSN for a specific DD name.           *
      *    'GETFIRST' - Get File Info for the first DD statement.     *
      *    'GETNEXT ' - Get File Info for the next DD statement.      *
      *                 Note: usually requires multiple calls to get  *
      *                       all of the DD statements.               *
      *    'DDLIST  ' - Display multiple DD statements to SYSOUT      *
      *    'DYNALOC ' - Dynamic File Allocation                       *
      *    'DYNSOUT ' - Dynamic SYSOUT Allocation                     *
      *    'DEALLOC ' - Dynamic File De-Allocation (or Free)          *
      *    'DDRESET ' - Reset the DD statement                        *
      *                                                               *
      *    Note: if the MVS-REQUEST keyword is not eight bytes the    *
      *          trailing bytes must be padded with space characters. *
      *                                                               *
      *    MVS-RESPOND will contain a primary response code.          *
      *    MVS-RESPOND2 will contain a secondary or supporting code,  *
      *        such as for a subordinate API call failure.            *
      *****************************************************************
      *
       01  MVS-JOBSTEP-INFO.
           05  MVS-parm-version        pic  x(02)  value '02'.
               88  MVS-parm-vers-cur               value '02'.
               88  MVS-parm-vers-ansi              value  x'3032'.
               88  MVS-parm-vers-ebcdic            value  x'F0F2'.
           05  MVS-REQUEST             pic X(8).
           05  MVS-REQUEST-X1          pic X(8).
           05  MVS-REQUEST-X2          pic X(8).
           05  MVS-REQUEST-X3          pic X(8).
           05  MVS-REQUEST-X4          pic X(8).
           05  MVS-RESPOND             pic 9(8)    comp.
               88  MVS-RESP-OK                     value ZERO.
               88  MVS-RESP-incompatible-ver       value 101.
               88  MVS-RESP-unknown-function       value 102.
               88  MVS-RESP-mfbctlbp-error         value 103.
               88  MVS-RESP-no-ddname              value 104.
               88  MVS-RESP-ddget-err              value 111.
               88  MVS-RESP-ddupd-err              value 112.
               88  MVS-RESP-getcat-err             value 121.
               88  MVS-RESP-updcat-err             value 122.
           05  MVS-RESPOND2                pic 9(8)    comp.
      *
           05  MVS-JOB-INFORMATION.
               10  MVS-JOBNAME             pic X(8).
               10  MVS-JOBID.
                   15  MVS-JOBTAG          pic X(3).
                   15  MVS-JOBNUM          pic 9(5).
               10  MVS-JOBSTEP             pic X(8).
               10  MVS-PROCSTEP            pic X(8).
               10  MVS-JOB-USERID          pic X(8).
               10  MVS-JOB-CLASS           pic X.
               10  MVS-JOB-MSGCLASS        pic X.
               10  MVS-LOAD-MODULE         pic X(8).
               10  MVS-JOB-ACCOUNT         pic X(144).
               10  MVS-JOB-PROGRAMMER      pic X(20).
               10  MVS-JOB-START-DATE      pic 9(8).
               10  MVS-JOB-START-TIME      pic 9(8).
               10  MVS-STEP-START-DATE     pic 9(8).
               10  MVS-STEP-START-TIME     pic 9(8).
      *
           05  MVS-FILE-INFORMATION.
               10  MVS-DSORG               pic X(4).
               10  MVS-RECFM               pic X(4).
               10  MVS-DATACLAS            pic X(8).
               10  MVS-DISP-INIT           pic X(4).
               10  MVS-DISP-NORM           pic X(8).
               10  MVS-DISP-COND           pic X(8).
               10  MVS-LRECL-JCL           pic 9(06).
               10  MVS-LRECL-MIN           pic 9(06).
               10  MVS-LRECL-MAX           pic 9(06).
               10  MVS-BLKSIZE             pic 9(06).
               10  MVS-KEYOFF              pic 9(06).
               10  MVS-KEYLEN              pic 9(03).
               10  MVS-DDNAME              pic X(8).
               10  MVS-DSNAME              pic X(44).
               10  MVS-DSNAME-MBR          pic X(08).
               10  MVS-PCDSN               pic X(260).
      *
           05  SYSTEM-INFORMATION.
               10  SYS-USER-NAME           pic X(32).
               10  SYS-USER-NAME-SIZE      pic 9(5).
      *
      ***  DYNJDDB1 - End-of-Copy File - - - - - - - - - - - DYNJDDB1 *
      *****************************************************************
      *


     

Summary

This document was generated by the SIMOTIME Record Layout utility program. The primary intent is to provide additional information about a record structure based on the field definitions from a COBOL Copy File. This document may be used 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.

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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.

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 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 icon.

    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.

    Explore The Binary or COMP format for numeric data strings. This numeric structure is supported by COBOL and may be explicitly defined with the "USAGE IS COMP" or "USAGE IS BINARY" clause.

    Explore The Packed-Decimal or COMP-3 format for numeric data strings. This numeric structure is supported by COBOL and may be explicitly defined with the "USAGE IS COMP-3" clause.

    Explore The Zoned-Decimal format for numeric data strings. This numeric structure is the default numeric for COBOL and may be explicitly defined with the "USAGE IS DISPLAY" clause.

    Explore How to Generate a Data File Convert Program using simple specification statements in a Process Control File (PCF). This link to the User Guide includes the information necessary to create a Process Control File and generate the COBOL programs that will do the actual data file conversion. The User Guide contains a list of the PCF statements that are used for the data file convert process.

    Explore How to Generate a Data File Compare, Validate or Hex-Dump Program using simple specification statements in a Process Control File (PCF). This link to the User Guide includes the information necessary to create a Process Control File and generate the COBOL programs that will do a data file compare, accumulate summary totals with a record count or produce a Hex-Dump of records in a VSAM, KSDS based on a list of user-defined keys. The User Guide contains a list of the PCF statements that are used for the data file compare, validate or dump process.

    Explore the COBOL Connection for more examples of COBOL programming techniques and sample code.

    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.

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

Internet Access Required

The following links will require an Internet connection.

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.

Explore the GnuCOBOL Technologies available from SourceForge. SourceForge is an Open Source community resource dedicated to helping open source projects be as successful as possible. GnuCOBOL (formerly OpenCOBOL) is a COBOL compiler with run time support. The compiler (cobc) translates COBOL source to executable using intermediate C, designated C compiler and linker. This link will require an Internet Connection.

Glossary of Terms

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

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Company Overview

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