CICS, Repository Inquiry & Update
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This example uses a suite of COBOL programs and BMS mapsets to display a screen that will prompt a user for a Data Set Name (or DSN). Once a DSN is entered the program will access the File Properties Repository (FPMASTER is a VSAM, KSDS). The programs use command level CICS statements to access FPMASTER 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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To display the File Properties screen a COBOL program and a BMS screen is used. The File Properties Screen contains a prompt for a new Data Set Name and the file information from a previous request. Once a new DSN is entered the File Properties Repository is accessed and the new information is displayed. Various EXEC CICS commands are used to access the repository and re-display the screen.
FP2UPD1 Data Files and VSAM Data Sets 2009/08/04 STOA File Properties Repository - Update Option 17:32:29:37 Next Data Set Name: SIMOTIME.DATA.CUSTMAST Data Set Name: SIMOTIME.DATA.CUSTMAST DSORG: KS RECFM: V Minimum Record Length: 00512 Maximum Record Length: 00512 Key Position: 00001 Key Length: 00012 Last Activity Date: Time: Status: F3=Menu F9=Updt F12=Esc
The File Properties Repository is a VSAM, Key Sequenced Data Structure (or KSDS). It has a record length of 1,024 bytes with a 54 byte key starting in position 3 of the record. The following copy file (FPMASTB1.cpy) shows the record structure.
***************************************************************** * FPMASTB1.CPY - a COBOL Copy File * * Copyright (C) 1987-2014 SimoTime Enterprises * * All Rights Reserved * * Provided by SimoTime Enterprises * * Our e-mail address is: firstname.lastname@example.org * * Also, visit our Web Site at http://www.simotime.com * ***************************************************************** * Copy File for the record structure of the FPMASTER File that * contains the properties or characteristics of non-relational * data structures, Sequential file or VSAM Data Sets. * This is a VSAM Keyed=Sequential-Data-Set or Key-Indexed File. * * 01 FPMASTER-REC. 05 FPMASTER-DATA-01. 10 FPMASTER-BASE-INFO. 15 FPMASTER-LEVEL-NBR PIC 9(2). COL-A 15 FPMASTER-DSN-NAME PIC X(54). COL-B 15 FPMASTER-DD-NAME PIC X(17). COL-C 10 FPMASTER-FILE-PROPERTIES. 15 FPMASTER-DCB-DSORG PIC X(4). COL-D 15 FPMASTER-DCB-RECFM PIC X(4). COL-E 15 FPMASTER-MIN-LRECL PIC 9(5). COL-F 15 FPMASTER-MAX-LRECL PIC 9(5). COL-G 15 FPMASTER-KEY-POS PIC 9(5). COL-H 15 FPMASTER-KEY-LEN PIC 9(5). COL-I 15 FPMASTER-VSAM-DAT PIC X(44). COL-J 15 FPMASTER-VSAM-IDX PIC X(44). COL-K 10 FPMASTER-JOB-INFO. 15 FPMASTER-JCL-OVR1 PIC X(8). COL-L 15 FPMASTER-JCL-USR1 PIC X(8). COL-M 15 FPMASTER-JCL-USR2 PIC X(8). COL-N 10 FPMASTER-EXTENDED-INFO. 15 FPMASTER-EXTEND-S1 PIC X(4). COL-O 15 FPMASTER-EXTEND-S2 PIC X(4). COL-P 15 FPMASTER-EXTEND-M1 PIC X(16). COL-Q 15 FPMASTER-EXTEND-M2 PIC X(16). COL-R 15 FPMASTER-EXTEND-M3 PIC X(16). COL-S 15 FPMASTER-EXTEND-M4 PIC X(16). COL-T 15 FPMASTER-EXTEND-X1 PIC X(256). COL-U 15 FPMASTER-EXTEND-X2 PIC X(256). COL-V 10 FILLER PIC X(227). * *** FPMASTB1 - End-of-Copy File - - - - - - - - - - - FPMASTB1 * ***************************************************************** *
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. Also, 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 documents and the links to other documents are intended to provide a choice of alternatives.
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SimoTime Enterprises 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 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, documentation or training material.
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.
The following links may be to the current server or to the Internet.
Explore the CICS Connection for more examples of mainframe CICS coding techniques and sample code.
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.
The following links will require an internet connect.
This suite of programs and documentation is available for download. 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 via Internet Connect for access to white papers, program examples and product information.
Explore The Micro Focus Web Site via Internet Connect for more information about products and services available from Micro Focus.
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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|File Properties, Repository Inquiry and Update using CICS|
|Copyright © 1987-2014
All Rights Reserved
|When technology complements business|