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COBOL Tutorial

A Complete Reference for Mainframe Programmer


COBOL tutorial will be useful for anyone, be in a student, a software Engineer or anyone who is serious towards mastering the COBOL in Mainframe. Also, this COBOL tutorial will be helpful to mainframe programmer to increase their level of expertise in COBOL.


There are no prerequisites for this COBOL tutorial. If you have fair idea on JCL, VSAM, FIle creation using option 3.2 and IBM Utilities like IEBGENER, then it will help you to understand COBOL better but this is not mandatory and you can still learn COBOL easily without any prior understanding of any programming language.

Would you like to learn TSO-ISPF ? Go to TSO-ISPF Tutorial

Would you like to learn JCL ? Go to JCL Tutorial

Would you like to learn VSAM ? Go to VSAM Tutorial

After completing the COBOL tutorial, you will be able to:

Topics covered in COBOL Tutorial:

  1. Introduction to COBOL
  2. Program Terminology
  3. Lanuage Structure
  4. Program Format
  5. Program structure
  6. Identification Division
  7. Environment Division
  8. Data Division
  9. Procedure Division
  10. Basic Verbs
  11. "Hello World" Program
  12. Data Items
  13. Edited Pictures Clause
  14. Arithmetic Expressions
  15. Intrinsic Function
  16. Conditional Expressions
  17. Scope Terminators
  18. String Handling
  19. Perform Statements
  20. COBOL Statements
  21. COBOL Table/Arrays
  22. File Handling
  23. Sort and Merge
  24. Inter-Programming Communication
  25. COBOL Sub-Program
  26. COBOL Compile Process
  27. Performance Tuning
  28. Advance COBOL

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