IMS Logical Relationships – CM241GCR

Enrol   Details

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Course Code: CM241G Brand: IBM Z – Information Management Solution Category: Systems Skill Level: Intermediate Duration: 32H Modality:CR      Audience

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People responsible for designing, implementing, maintaining, or tuning IMS databases using logical relationships.

  Prerequisites

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You should have at least four months of experience using IMS and should be able to:

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• • Use TSO/ISPF or PDF

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• • Demonstrate basic knowledge of:_x000D_
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  • OS/VS Job Control Language

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  • VSAM access methods service utilities

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  • DL/I application programming techniques

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• Describe the characteristics and storage format of HISAM, HIDAM and HDAM databases and code their DBDs

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• Understand the IMS DB Monitor and use its reports to resolve database performance concerns

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These skills can be developed by attending:

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• IMS Physical Organization of Databases Workshop (CM22)

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• IMS Database Performance and Tuning Workshop (CM30)

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  Short Summary

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People responsible for designing, implementing, maintaining, ortuning IMS databases using logical relationships.  Overview

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Learn how to successfully implement and tune Information Management System (IMS) databases with IMS logical relationships. Examine in detail the various pointer options. Practice these skills in intensive machine-lab exercises.

  Topic

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• Introduction to Logical Relationships
• Unidirectional Logical Relationships
• Unidirectional Logical Data Structures
• Bidirectional Logical Relationships
• Bidirectional Logical Data Structures
• Database Load and Reorganization
• Recursive Structures
• ISRT Rules and Exercise
• Logical Relationship Performance
• Logical Relationship Tuning
• Design and Change Considerations

  Objectives

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• Code the DBDs and PSBs for databases involved in logical relationships, including those using recursive data structures

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• Use IMS utilities to load and reorganize logically related databases

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• Choose logical relationship update rules based upon application processing requirements

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• Identify DBD coding parameters that are critical to the performance of logically related databases

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• Interpret the results of logical relationship implementation choices using the reports provided by the IMS Monitor

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