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This text overcomes the limitations of most of the technical literature concerning JCL by providing comprehensive examples and practical guidance throughout. The text focuses on the functional, relevant topics programmers need to know to get work done in a business data processing environment. Examples start with what a programmer needs to know to test a job, then builds up to what must be done to move the job into production. This learn-by-doing approach also shows how JCL is integrated with online facilities such as TSO. Features a complete summary of contemporary system completion codes with advice for problem resolutions and fresh coverage of condition code testing, generation data group creation and usage, and more. No Comb binding.
Designed to help newcomers to the TSO/ISPF environment quickly become proficient at creating and editing programs, submitting jobs, and seeing the results. First five chapters provide rapid familiarization with the unique aspects of the IBM terminal device family, logging on and off, the ISPF main menu, and the initial set-up often needed for new accounts. This part of the book can be assimilated in a few hours. Latter five chapters are arranged with examples of the most common way ISO/ISPF is used: for composition of program language code, and composition and submission of job control language to process it. The reader can progress through these chapters performing these processes hands-on, in a self-paced tutorial manner. Reference charts and examples depict a natural flow of the job editing and job submission work.
Written by authors who design, program, and manage online systems supported by VSAM data sets, this text is intended to train readers -- particularly, business data processing programmers -- to use VSAM in a practical manner. Covers thoroughly the VSAM key sequenced data set knowledge and techniques needed to operate productively in the business data processing environment. Illustrates tools in documented source code form -- computational CLISTs, programs that read LISTCATs and automatically extract and analyze them, and prime or alternate key value distribution analysis routines (diskette available for uploading to mainframe). Also addresses management of VSAM data sets in the production environment.
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The z/OS System Logger is a function provided by the operating system to exploiters running on z/OS. The number of exploiters of this component is increasing, as is its importance in relation to system performance and availability. This IBM Redbooks document provides system programmers with a solid understanding of the System Logger component and guidance about how it should be set up for optimum performance with each of the exploiters. System Logger is an MVS component that provides a logging facility for applications running in a single-system or multi-system sysplex. The advantage of using System Logger is that the responsibility for tasks such as saving the log data (with the requested persistence), retrieving the data (potentially from any system in the sysplex), archiving the data, and expiring the data is removed from the creator of the log records. In addition, Logger provides the ability to have a single, merged, log, containing log data from multiple instances of an application within the sysplex.
For more than 40 years, Computerworld has been the leading source of technology news and information for IT influencers worldwide. Computerworld's award-winning Web site (Computerworld.com), twice-monthly publication, focused conference series and custom research form the hub of the world's largest global IT media network.
For more than 40 years, Computerworld has been the leading source of technology news and information for IT influencers worldwide. Computerworld's award-winning Web site (Computerworld.com), twice-monthly publication, focused conference series and custom research form the hub of the world's largest global IT media network.