Intermediate COBOL Programming (CO1020)

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About this Course

This course provides application developers with more complex knowledge in developing COBOL programs in a mainframe environment.

Audience Profile

Application programmers who want to learn more COBOL.

At Course Completion

Upon successful completion of this course, the student will be able to:

  • Understand the principles and practices of working with files
  • Be able to code COBOL programs which utilize files
  • Understand and code COBOL programs using SORT/MERGE
  • Understand how to work with CICS applications
  • Understand how to work with DB2 applications


Students MUST be familiar with z/OS JCL, TSO/ISPF and z/OS Utilities and a programming background is preferred. Students MUST have taken CO1010 course, Introduction to COBOL Programming or have comparable experience.

Course Outline

  • Concepts and terms for working with disk files
  • How to work with sequential files
  • How to use Access Method Services to work with VSAM files
  • How to work with indexed files
  • How to work with relative files
  • How to use the sort/merge feature
  • How to use CICS to develop interactive programs
  • How to use DB2 to develop database programs