https://datafield.dev/learning-cobol-programming/part-03/chapter-12/exercises.html
Chapter 12 Exercises: Indexed File Processing (VSAM KSDS) | Learning COBOL
Feb 10, 2026 - Practice exercises for Chapter 12: Indexed File Processing (VSAM KSDS) — Choose from: Successful completion, Duplicate alternate key, End of file, Key...
indexed filechapterexercisesprocessingvsam