Mainframe, MVS and zOS Discussion

Hi,

how can we delete all the GDG versions of a GDGbase with out really deleting the base. Can you please tell me?

open the IDCAMS manual and look Yourself
https://www.ibm.com/support/knowledgece ... 00/toc.htm

DELETE ALL GDG VERSIONS WITHOUT DELETING BASE.

Please don't use all CAPS. It's considered as shouting.

To your question - there are two way I can think of at the moment. One with IDCAMS, Enrico has already directed you to. Second is using IEFBR14 - sample Job is shown below:

Actually thse will delete generations - not necessarily versions of a generation. Which does the user want?

Since a GDG usually creates GENERATIONS with a VERSION of 00, but you can manually create GENERATIONS with a VERSION that is not zero, it is not all clear what you are asking. If you mixed up the terms, you need to go back and study -- for several hours at least -- the differences between GENERATIONS and VERSIONS for a GDG.

nicc wrote: ↑Mon Nov 20, 2017 3:59 pmActually thse will delete generations - not necessarily versions of a generation. Which does the user want?

I did not get you? I needed to delete all the version for a GDG base.

I did not get you? I needed to delete all the version for a GDG base.

A GDG has BOTH generations and versions; you are not making it clear whether you are wanting to delete all generations of the GDG or if you have a non-zero version of a generation that you want to delete.

As long as you have confused your terminology, nobody on this -- or any -- forum can provide you any more help. Why don't you go back to the beginning, describe the data you have (with examples) and tell us what you want to do with what you have?

Ashish Mathew wrote: ↑Tue Jan 09, 2018 3:32 pmI did not get you? I needed to delete all the version for a GDG base.

This should be of interest: viewtopic.php?f=63&t=407

So, generation is the correct word when we are referring to a gdg?

What was not clear? The first sentence clearly give you the information that you are querying.

I suggest that you start reading: google this: "z/OS Basic Skills"

So, generation is the correct word when we are referring to a gdg?

In the vast majority of cases, yes. There are some sites that create V01 (or V02 or ...) -- that is, different versions of a single generation -- so there are cases when referring to version is valid. These cases are very rare -- I think I've dealt with 2 or 3 in 40+ years of mainframe processing.

Thanks. I was talking about generation not versions.

Thanks for the confirmation - hope you now understand the difference.

Yes I understand it now.