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 transaction identifier (or Tran ID) for this menu option is "FPU1" and the program is "FP2UPD".
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 Linux, UNIX or Windows System with Micro Focus Enterprise Server.
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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) 1987-2019 SimoTime Technologies * * All Rights Reserved * * Provided by SimoTime Technologies * * 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 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 contact us using the information in the Contact, Comment or Feedback section of this document.
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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.
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 how to manage a Repository of Information about Data Files used by an application or suite of applications. This link will focus on non-relational data structures such as traditional files, VSAM Data Sets, Partitioned Data Sets (PDS's) and Generation Data Groups (GDG's). The repository is a VSAM, Key-Sequenced-Data-Set (KSDS).
Explore how to load a Repository of Information about Data Files used by an application or suite of applications. The load process will read a user-defined file of information and update the File Properties Repository that is a VSAM Key-Sequenced-Data-Set (KSDS). This link will focus on non-relational data structures such as traditional files, VSAM Data Sets, Partitioned Data Sets (PDS's) and Generation Data Groups (GDG's).
Explore an example of a generated HTML document that contains the details (or properties) of the non-relational data structures used by an application. This link will focus on non-relational data structures such as traditional files, VSAM Data Sets, Partitioned Data Sets (PDS's) and Generation Data Groups (GDG's).
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 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 (including Micro Focus COBOL) and services available from Micro Focus. This link requires an Internet Connection.
Explore the Glossary of Terms for a list of terms and definitions used in this suite of documents and white papers.
This document was created and is maintained by SimoTime Technologies and Services. If you have any questions, suggestions, comments or feedback please use the following contact information.
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|File Properties, Repository Inquiry and Update using CICS|
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SimoTime Technologies and Services
All Rights Reserved
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