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Status Not under consideration
Workspace Db2 for z/OS
Created by Guest
Created on May 20, 2021

Db2 z/OS limitations with ALTER TABLESPACE MOVE TABLE

I love the upcoming FL508 and this new availability even though I have not used it. Looking deeper into the Knowledge Center there seems to be some limitations that I would like to see resolved.

The two items are:

a) Exist in the same database as the source table space

b) The source be a simple or segmented (non-UTS) table space whereas target be a universal partition-by-growth table space.

https://www.ibm.com/docs/en/db2-for-zos/12?topic=statements-alter-tablespace

Two examples would help justify this need.

1) Some users (not necessarily us) have huge amounts of tables in a single tablespace. Spawning those out is a great feature in FL508 but the requirement to keep in same database is not ideal because there may be database level locking and I can see a future alter failing for that reason.

2) We have some PBR tables in a database that are very heavily used. It would be nice to move them to a new database. I'm not sure why we are held to PBG and of course same database. Moving those around would help reduce database level locking.

I'm sure there are other reasons for enhancements to this brand new feature but again thank you for providing the first round of functionality in this feature.

Needed by Date Jan 1, 2022