Post #1
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Jordan
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Joined: May 2, 2026, 11:10 AM
Posted: Aug 3, 2026, 10:53 AM
COBOL has SELECT ... ASSIGN TO INFILE. JCL has //INFILE DD DSN=...
Is the DD just how you point the program at a real dataset?
Thread: JCL and JCL Utilities
What is a DD statement? Keep seeing //something DD
Started by Jordan • user3 replies225 viewsLast activity 1 week ago
Post #2
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Jen
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Posted: Aug 3, 2026, 12:53 PM
Yes. DD = data definition. The name after // must match what the program expects (ASSIGN TO name, or SORTIN, etc).
DSN= says which dataset. SYSOUT=* means print to the spool. Dummy / DUMMY means no real file.
Post #3
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Jordan
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Posted: Aug 3, 2026, 4:53 PM
So if ASSIGN TO CUSTIN I need //CUSTIN DD ... Got it.
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