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Course Catalog » COBOL Programming Curriculum

COBOL for z/OS

4 hours



The COBOL for z/OS course is designed for learners with a basic understanding of generic COBOL who need to extend it use to the z/OS environment. It describes how COBOL programs are made available through compile and bind processes and discusses coding and options specific to the z/OS environment. The use of IBM's Language Environment is presented, and a number of coding techniques used to improve the performance of COBOL running on z/OS, is also shown.


COBOL programmers who need to learn how COBOL is used in a z/OS environment.


Solid knowledge of COBOL and procedural programming concepts.


After completing this course, the student will be able to:

  • Describe how COBOL programs are created, compiled and bound in a z/OS environment
  • Identify Enterprise COBOL methods used to access, allocate and display data
  • Identify compiler options and COBOL code used to improve program performance
  • Describe the importance of using Language Environment

Course Content

Introduction to Enterprise COBOL for z/OS

Executing a COBOL Program on z/OS

Language Environment

Creating a COBOL Program on z/OS

Compiling COBOL Programs

Compile Options

Binding Object Code

Program Objects and Load Modules

Using Enterprise COBOL for z/OS

File Allocation

z/OS Data Sets Used by COBOL Programs

Display and Accept Commands

Sort and Merge Statements

COBOL and Supported Database Managers

Static and Dynamic Calls

Dynamic Link Libraries (DLLs)

COBOL and Other Programming Languages


Object Oriented COBOL

COBOL for z/OS Performance

COBOL Compile Options

Compiler Optimization

TRUNC Option

I/O Related COBOL Options

Calling Other Programs

Sort Performance

Language Environment Options

Optimizing COBOL Code

Introduction to Language Environment

Need for Language Environment

Programming Languages that use Language Environment

Callable Services

Language Environment Options


Language Environment and User Program Messages

Language Environment Initiated Dumps

Interpreting Language Environment Dumps

COBOL for z/OS Mastery Test

Course Catalog » COBOL Programming Curriculum
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