IBM Data and AI Ideas Portal for Customers


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Db2 for z/OS

Showing 792

Message in *MSTR after 'STOP DB2 MODE(FORCE)' - command

Message in *MSTR after 'STOP DB2 MODE(FORCE)' It would be very helpful for debugging and analysis if you would document an STOP DB2 MODE(FORCE) in the *mstr -joblog. In addition from my point of view the message 'DSN9022I <DBR2 DSNYASCP 'STO...
over 4 years ago in Db2 for z/OS 0 Not under consideration

Log volume SYSUTILX

We have very large LOB objects (e.g. nnTBs). Due to the change (delete/insert/update) pattern of our applications, we have to use incremental image copies (IIC) very often to ensure recoverability for these objects. IIC for LOB objects generate l...
over 4 years ago in Db2 for z/OS 1 Not under consideration

When dropping table retain OBID for when recreating that same table

Any account that utilizes QREP should want this option of retaining OBID
over 1 year ago in Db2 for z/OS 2 Not under consideration

Specia Register to change INVALIDATECACHE default in Db2v12

We have PeopleSoft Payroll application running on Db2 v12 z/OS. We noticed that the default value of INVALIDATECACHE in RUNSTATS has been changed from YES to NO in v12. This change has huge impact on the performance because RUNSTATS for temporary ...
almost 4 years ago in Db2 for z/OS 1 Not under consideration

Enhance package dependency quiescing/locking behavior of EXCHANGE

Enhance package dependency quiescing/locking behavior of EXCHANGE, so it will be possible to exchange base- and clone-table in parallel to (many) transactions reading one of these tables in parallel .
over 10 years ago in Db2 for z/OS 1 Not under consideration

Reset an invalidated statement level optimization hint

If a statement level optimization hint was invalidated for whatever reason one has to repeat the whole process to get the same hint again.
almost 10 years ago in Db2 for z/OS 1 Not under consideration

I would like to force the use of the "DEFER" option on the creation of an index (using Zparm to make it optional).

We have DBAs that at times (accidently) run a "CREATE INDEX" and fail to include the "DEFER" option. This is rather easy to do because the reverse engineering tools fail to create syntax with the "DEFER" option. The creation of indexes can be very...
over 5 years ago in Db2 for z/OS 3 Not under consideration

VIRTUAL_INDEX_USED column in plan table

MR0218096957 GGDB208030Mark all rows of a statement in the plan_table with an Y in a new column VIRTUAL_INDEX_USED when a dependency to a virtual index exists.
over 11 years ago in Db2 for z/OS 1 Not under consideration

Open Cursor with Hold

MR021809690 GGDB208033Add a new thread based accounting-class-2- and a package based accounting-class-7 counter ????????????????????????OPEN CURSOR WITH HOLD???????????????????????? which will be incremented whenever a OPEN statement with option H...
over 11 years ago in Db2 for z/OS 0 Not under consideration

Reduce locking on XML-auxiliary tables

Locking on XML auxiliary tables can be very CPU cost intensive and can lead to problems with the threshold LOCKS PER USER.Tune DB2s locking algorithms so that locking on XML-auxiliary tableswill be reduced.
about 10 years ago in Db2 for z/OS 2 Not under consideration

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