Binary View of Data File  Hexadecimal Display using CICS http://www.simotime.com

Introduction
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This example uses a suite of COBOL programs and BMS mapsets to display the contents of a user requsted record from the Customer Master File. The information is displayed in a hexadecimal (or DUMP) format. This transaction is provided as a tool for programmers and support personnel. The programs use command level CICS statements to access the VSAM Master File and display information to a 3270 terminal or terminal emulator. The programs run on an IBM Mainframe System with CICS or a Microsoft Windows System with Micro Focus Server for Mainframe Migration.

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Display a Binary View of a Customer File Record
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When the Hex-dump utility program is first executed a screen with the prompt for a customer number and record position is displayed. The user should type a customer number. If the record position is not entered it will default to position 1.

 CUDUMP1                Data Base Management System                   2007/11/11
 STOA                    Customer File Dump Option                   20:30:00:00
        Enter the Record Key: _               Position within Record:
 Position Hex..... ........ ........ ........ ebcdic.......... ascii...........

 ...
 ...


                PF3-End Session

When the user presses the "Enter" key the program will get the requested record and re-display the screen with the first 256 bytes of the customer record starting in position one (1). If the requested customer cannot be found an error message is posted to the screen. The user may enter another customer number or change the starting position

 CUDUMP1                Data Base Management System                   2007/11/11
 STOA                    Customer File Dump Option                   20:30:00:00
    Enter the Record Key: 000000001900          Position within Record: 00000001
 Position Hex..... ........ ........ ........ ebcdic.......... ascii...........
 00000001 30303030 30303030 31393030 20536D69 .............._. 000000001900 Smi
 00000017 74682020 20202020 20202020 20202020 ................ th
 00000033 20202020 20202020 2053616D 6D792020 ........../__`..          Sammy
 00000049 20202020 20202020 20202020 20202020 ................
 00000065 20202020 20202020 20202020 20202020 ................
 00000081 20313931 39204361 726E6F75 73746965 ......./.>?.....  1919 Carnoustie
 00000097 20447269 76652020 20202020 20202020 ................  Drive
 00000113 20202020 20202020 20202020 20202020 ................
 00000129 20202020 20202020 20202020 20202020 ................
 00000145 20202020 20202020 20202020 20202020 ................
 00000161 20202020 20202020 20202020 20202020 ................
 00000177 20202020 20202020 20202020 20202020 ................
 00000193 20202020 20202020 20202020 20202020 ................
 00000209 20202020 20202020 20202020 20202020 ................
 00000225 20202020 20202020 20202020 20202020 ................
 00000241 20202020 20202020 20202020 20202020 ................

                PF3-End Session

The Customer Master File
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The Customer Master File is a VSAM, Key-Sequenced-Data-Set (KSDS). The length of the records in the data set is 512 bytes. The key field starts in position one (1) and is 12 bytes in length. The following is the COBOL copy file that defines the record layout.

Summary
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The purpose of this suite of program is to provide examples that use command level CICS in COBOL programs to access VSAM, Key-Sequenced-Data-Sets (KSDS) and display the information using standard BMS screen definitions to a 3270 terminal or terminal emulator. A hexadecimal dump format is used to display 256 byte blocks of data based on a user specified starting position in the record.

Software Agreement and Disclaimer
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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.

Downloads and Links to Similar Pages
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You may download this example at http://www.simotime.com/sim4dzip.htm#zPACKcicshx01 or view the complete list of SimoTime Examples at http://www.simotime.com/sim4dzip.htm.

To review all the information available on this site start at  The SimoTime Home Page .

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 and sample code. This link will describe how to create the Customer Master FIle and the Item Master File that are used by other sample programs.

This document provides a quick summary of the  File Status Key  for VSAM data sets and QSAM files.

Glossary of Terms
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Check out  The SimoTime Glossary  for a list of terms and definitions used in the documents provided by SimoTime.

Comments or Suggestions
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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.

About SimoTime Enterprises
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Founded in 1987, SimoTime Enterprises 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. 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 complimentary 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