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Sam
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Posts: 28
Joined: 07/01/2026, 02:30 PM
Posted: 07/30/2026, 08:52 AM
Saw DSN=HLQ.DAILY.DATA(+1) and later (0) and (-1). Feels like versioning but I do not get the numbers.
Saw DSN=HLQ.DAILY.DATA(+1) and later (0) and (-1). Feels like versioning but I do not get the numbers.
GDG = generation data group. Same base name, many generations.
(+1) = new generation you are creating this run.
(0) = current (most recent cataloged) generation.
(-1) = previous one.
After the job catalogs (+1), that generation becomes the new (0) for the next job.
LIMIT on the base controls how many gens are kept. Scratch vs noscratch is a whole other headache for later.
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