File and VSAM Access
CICS, Look-up a File Status Code
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This example uses a suite of COBOL programs and BMS map sets to display a screen to prompt a user for a file status code. When the user enters the code a brief description of what caused the condition will be displayed. The transaction identifier (or Tran ID) for this menu option is "FSC1" and the program is "FILERC".
The programs use command level CICS statements to access the VSAM File with status codes and descriptions. The information is displayed 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 Status screen a COBOL program and a BMS screen is used. The File Status Screen contains a prompt for a new File Status Code and the file status information from a previous request.
FILERC1 Data Files and VSAM Data Sets 2007/11/11 STOA File Status Codes - Inquiry Option 20:30:00:00 Next File Status Code: 35__ (or extended hex value): __ Code Description PF3-Menu PF12=Esc
Once a new File Status Code is entered the Repository of File Status Codes is accessed and the new status information is displayed.
FILERC1 Data Files and VSAM Data Sets 2007/11/11 STOA File Status Codes - Inquiry Option 20:30:00:00 Next File Status Code: 0035 (or extended hex value): __ Code Description 0035 OPEN failure, specified file not found PF3-Menu PF12=Esc
Various EXEC CICS commands are used to access the repository of file status codes and re-display the screen.
The Repository of File Status Codes is a VSAM, Key Sequenced Data Structure (or KSDS). It has a record length of 80 bytes with a 4 byte key starting in position 1 of the record. The following copy file (FILERCB1.cpy) shows the record structure.
***************************************************************** * FILERCB1.CPY - a COBOL Copy File * * Record Structure for the File of Status Codes * * This is a VSAM Keyed-Sequential-Data-Set or Key-Indexed 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 * ***************************************************************** * 01 MSGXKSDS-REC. 05 MSGXKSDS-DATA-01. 10 MSGXKSDS-KEY PIC X(4). 10 MSGXKSDS-DATA PIC X(54). 10 FILLER PIC X(22). * *** FILERCB1 - End-of-Copy File - - - - - - - - - - - FILERCB1 * ***************************************************************** *
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.
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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.
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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 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 non-Relational Data Connection for more examples of accessing methodologies and coding techniques for Data Files and VSAM Data Sets.
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 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 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 (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.
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|Status Codes for File and VSAM Access, Look-up a File Status Code using CICS|
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SimoTime Technologies and Services
All Rights Reserved
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