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IMS DB Programming

Course Overview


Xpertised Offers Advanced and Personalized Instructor Led Online Classroom training on IMS DB Programming which gives you the opportunity to interact with a IMS DB Programming instructor and help you enhance yourself to meet the demands of the industry.

Learn from our instructors from the convenience of your home or office. Interact and learn live with trainers and other participants.

Course Content


Database Concepts

  • Definition of a Database
  • Data Storage Methods
  • Database Concepts
  • Hierarchical Database Storage
  • 3 Major Components of IMS
  • IMS™ Database System
  • IMS™ Components Overview
  • Reasons for Using IMS/DB™
  • IMS/DB™ Facilities

Database Structures

  • IMS Hierarchical Structure
  • IMS Database Record
  • Twin Processing
  • Design Consideration
  • Sequential Processing
  • Random Processing
  • Program’s View of the Database

IMS Database Rules

  • Concepts & Terminology Review
  • Structure Quiz
  • IMS Control Blocks
  • Defining an IMS Database
  • DBD Source
  • DBD Generation Control Statements
  • Defining the Program’s View of the Database
  • PSB Source
  • PSB Generation Control Statements
  • Application Control Block
  • Summary of IMS Libraries and
  • Associated Control Blocks

Application Program Structure

  • IMS™ Corrections to Application Program
  • IMS™ Application Environment
  • A Subprogram of IMS
  • Requesting IMS Processing
  • Communicating Processing Requests-DL/I Calls
  • Parm Count
  • Call Function
  • Program Communication Block (PCB) Mask
  • PCB Mask Format
  • Application Interface Block (AIB) Mask Format
  • I/O Area
  • Segment Search Argument (SSA)
  • SSA Format
  • Building an SSA
  • SSA Coding Rules
  • SSA Relational Operator
  • SSA Example
  • SSA Example: Vendor SSA
  • Vendor SSA Qualification Example
  • SSA’s Multiple Level Call
  • Status Code
  • Basic IMS Program Components

Database Processing - Add

  • Positioning
  • Status Code Checking
  • Insert Call
  • ISRT Call Format
  • Inserting a New Segment Occurrence
  • Using the Insert to Load a Database
  • Insert Processing Exercise

Database Processing – Retrieve

  • Unique Call
  • Get Unique Call Format
  • Get Unique Call Example
  • Get Next Call
  • Get Next Call Format
  • Get Next Call Example
  • Retrieval Processing Exercise
  • Parentage
  • Get Next Within Parent Call
  • Get Next Within Parent Call Format
  • Get Next Within Parent Call Example
  • Parentage Processing Exercise
  • Database Processing – Update
  • Get Hold Calls
  • Get Hold Call Format
  • Get Hold Call Example
  • Replace Call
  • Replace Call Format
  • Replace Call Example
  • Delete Call
  • Delete Call Format
  • Delete Call Example
  • Update Processing Exercise
  • Sequential Processing Review
  • Direct/Random Processing Review

Command Codes

  • What is a Command Code?
  • SSA Format
  • Command Code Example
  • ‘D’ Command Code
  • ‘N’ Command Code
  • ‘F’ Command Code
  • ‘L’ Command Code
  • ‘C’ Command Code
  • ‘P’ Command Code
  • ‘Q’ Command Code
  • ‘U’ Command Code
  • ‘V’ Command Code

Miscellaneous Topics

  • Using Boolean Operators in SSAs
  • Boolean SSA Structure
  • Boolean SSA Examples
  • Types of IMS Programs
  • IMS™ Access Methods
  • GSAM
  • HSAM
  • SHSAM
  • HISAM
  • IMS Access Methods
  • SHISAM
  • HDAM
  • HIDAM
  • Summary of Access Methods
  • Level Sensitivity
  • Field Level Sensitivity Example
  • Secondary Indexing Overview
  • Secondary Indexing Segments
  • Secondary Indexing Example
  • Secondary Indexing PSB’s
  • Secondary Indexing Processing Requests
  • Secondary Indexing Limitations

Testing Under BTS II

  • Overview of BTS
  • BTS System Flow
  • BTS Output
  • BTS Commands - ./T
  • T - Call Trace Features
  • Defining Output - ./O
  • Other BTS II Commands

Customer Reviews


Thanks to Xpertised and the tutor who walked me through all the topics with Practical exposure which is helping me in my current project.
-Waseem

Course was quite helpful in terms of understanding of concepts and practicality. Its really a very friendly environment to learn. The timing were mutually chosen, as we both are working professional. I am quite satisfied with the course.
-Tanmoy

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