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IMS database application programming

To design an application program for IMS, you need to identify the application data and analyze requirements for application processing. You might also need to perform other tasks, such as gathering requirements for database and message processing options and testing an application program.

You’ll also need to know about DL/I, IMS database hierarchical structure, component architecture, control blocks, physical and logical views of the data, and more.

What this course covers

This course shows you through lectures and lab demos how to code application programs that need to access and update IMS databases. You'll learn about the hierarchic structure of IMS databases, how to construct DL/I calls, how to test your applications, and more.

Note that this course does not teach basic COBOL or PL/I. You should already have experience developing applications with one or both of those languages.

Who should take this course?

This course is for IMS application developers, database administrators, and system programmers who develop, test, and debug application programs that access and update IMS databases.

Prerequisites

You should have experience with coding IMS application programs in either COBOL or PL/I and have some knowledge IMS and specifically IMS databases.

It’s also recommended that you watch the course videos for Physical Organization of Databases or have equivalent working experience.

Learning objectives

After completing this course, you should understand how to:

• Describe the basic differences between files and IMS databases as they relate to application program coding and logic
• Describe the terms and processing characteristics of IMS hierarchic data structures
• Construct DL/I calls for either COBOL or PL/1 language programs
• Write, test, and debug a batch application program that uses the DL/I call functions
• Use the IMS DL/I Test Program to prototype application program calls, and to perform ad hoc read and update access to an IMS database
• Describe the applications and uses of other DL/I features
• Program for recovery and restart using DL/I calls to establish synchronization points
• Describe the functions provided by High Availability Large Database (HALDB) and any program differences when accessing a full-function database versus a HALDB

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If you successfully complete the course, you'll get a digital badge!

You'll need an IBM account to enroll in the course and a Credly account to accept the badge.

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