CM241G: IMS Logical Relationships

IBM Systems Training

on July 29, 2022

      

2 min read

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Table of Contents

  1. Short Summary
  2. Duration
  3. Content Description
  4. Objectives
  5. Agenda
  6. Audience
  7. Skill Level
  8. Labs?
  9. Keywords
  10. Prerequisites
  11. Enrollment
  12. Errata
  13. Follow-on Courses

Short Summary

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

Duration in Hours ⌚

32

Content Description

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.

Objectives

  • Code the DBDs and PSBs for databases involved in logical relationships, including those using recursive data structures
  • Use IMS utilities to load and reorganize logically related databases
  • Choose logical relationship update rules based upon application processing requirements
  • Identify DBD coding parameters that are critical to the performance of logically related databases
  • Interpret the results of logical relationship implementation choices using the reports provided by the IMS Monitor

Agenda

  • 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

Audience

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

Skill Level

Intermediate

Labs? 💻

Yes

Keywords

CM241G; zos;CM241

Prerequisites

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

    • Use TSO/ISPF or PDF
    • Demonstrate basic knowledge of:
    • OS/VS Job Control Language
    • VSAM access methods service utilities
    • DL/I application programming techniques
  • Describe the characteristics and storage format of HISAM, HIDAM and HDAM databases and code their DBDs
  • Understand the IMS DB Monitor and use its reports to resolve database performance concerns

These skills can be developed by attending:

  • IMS Physical Organization of Databases Workshop (CM22)
  • IMS Database Performance and Tuning Workshop (CM30)

Enrollment

https://www.ibm.com/training/course/CM241G

Errata

None specified.

Follow-on Courses

None


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