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Voraussetzungen: Ability to describe the fundamentals of data processing, including the function of operating systems, access methods and job control language. These skills can be obtained from on-the-job experience.

Seminar-Inhalte

Kursziele

• Identify the elements and organization of an IMS database system
• Describe how a database record is processed in hierarchic sequence
• Understand the differences between DBD and PSB control blocks
• Compare the requirements and effects of sequential vs. direct access of database segments
• Explain the rationale for using secondary indexes and logical relationships
• Contrast full-function and Fast Path database organizations
• Describe the basic IMS Data Communications functions of the IMS Transaction Manager (IMS/TM) environment
• Identify the roles of messages, queues, and logical terminal names
• Explain the different scheduling characteristics of the IMS/TM regions types: Message Processing, Batch Message Processing, and Interactive Fast Path
• Describe the role of commit points in recovery and restart
• Identify the functions of dynamic and batch backout, the system log, and the benefits of periodically backing up a database
• Explain how a conversational program impacts processing and performance
• Describe the function of DBRC, IRLM for data sharing, distributed processing, and DBCTL for CICS

Themenübersicht

• Database Manager
• Database handling
• Hierarchic A/M
• Other DL/I functions
• Transaction Manager
• Transaction Message Procedure
• Fast Path
• Large systems environment: CICS, data sharing
• Distributed processing: MSC/ISC
• IMS-DB2 attachment

HinweiseClass material is in English language, teaching language can be different. Please check the schedule.

Zielgruppen

Learn about the basic IMS facilities - the IMS Database System and the IMS Transaction Manager. You will explore how these facilities work together and how application programs interact with them in todays complex Enterprise Systems. ZielgruppeUsers who want a basic understanding of the IMS Database and IMS Transaction Manager products and data processing people who will be working with an IMS System (DB, DB/DC, DBCTL).