IMS/DB Programming

This course is designed, written and presented by Minerva Douglas, one of the UK's foremost IMS programming specialists. The course will provide the essential information that is required by programmers to enable them to use IMS to access Databases as effectively as possible. The course covers not only the facts about IMS database access, but also includes several practical exercises that allow attendees to work through various programs and learn the most structured and efficient use of IMS database calls.

This course is available on demand for public presentation (minimum 2 attendees) and is also available for one-company, on-site presentations.

What you will learn

On successful completion of this course you will be able to:

  • describe the basic components of IMS DB
  • understand and use IMS DB terminology
  • describe and explain the main facilities available in IMS DB
  • code and test a basic COBOL or PL/I program to access IMS databases.

Who Should Attend

Systems Analysts, Applications Programmers and DBAs (as a first stage of their training).


COBOL or PL/I programming experience and program edit and submission knowledge.


4 days

Fee (per attendee)

£1850 (ex VAT)


This includes free online 24/7 access to course notes.


Hard copy course notes are available on request from

at £50.00 plus carriage per set.

Course Code



Introduction to IMS

Hierarchical database versus conventional files; hierarchical database terminology.

IMS Components

Data Base Description; Program Specification Block; Application Control Block.

IMS Programming

IMS batch programming; DL/1 Call Statement; Segment Search Arguments; GU function; GN function; GNP function; ISRT function; REPL function; DLET function; efficiency considerations; positioning; multiple qualification; IMS DB status codes; program structure.

Command Codes

D Command Code; F Command Code; L Command Code; C Command Code; P Command Code; N Command Code; U Command Codes; V Command Code.

Database Access Methods

HSAM; HISAM; HDAM; HIDAM; non-Hierarchical Sequential Organisation; Secondary Indexing; Logical Relationships; Logical Structures.

What the students say

The teacher of this course was excellent, one of the best I've had. Will be recommending that other members of my department attend this course.


Scottish Widows IT

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