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Asked: 2026-05-15T06:02:57+00:00

I would like to know the difference between KEEP and UNCATLG. As per my

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I would like to know the difference between KEEP and UNCATLG.
As per my knowledge both will remove the catalog entry for the datasets.

Thanks and Regards,Manasi

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  1. Editorial Team

    I don’t believe so. KEEP will not remove the entry from the catalog if it was already there. UNCATLG will remove it no matter what.

    I think that, if you want to keep the data set, you have three options:

    • CATLG will give you a catalog entry regardless of whether one existed before.
    • UNCATLG will remove the catalog entry regardless of whether one existed before.
    • KEEP will not change the catalog entry.

    All those options keep the data set itself.

    If you’re talking specifically about SMS-managed or VSAM data sets, KEEP is implied and UNCATLG is ignored.

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