IBM Data and AI Ideas Portal for Customers


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Db2 for z/OS

Showing 797

Configure a user-defined value for disabling all IFI request and MONITOR trace processing after a number of abends

When a certain number of abends occurs, while processing IFI requests, processing of all IFI request and MONITOR trace is disabled, requiring an action from Db2 operator/system administrator to be resumed. Today this number of abends, that disable...
over 1 year ago in Db2 for z/OS 8 Not under consideration

A View with Select * should be regenertated without Drop/Create View

We have a lot of views defined with Select *. Since DB2 V8 we have the option to add columns to the base table, but the view does not include the new column, which is ok and accepted. But to get the new column we have to drop and recreate the View...
about 12 years ago in Db2 for z/OS 1 Not under consideration

Avoid Reorg Abends by improving estimation of average row length

Today, for estimating the average row length being passed to sort, REORG gets that from catalog statistics with either AVGROWLEN or COMPRESSRATIO. The reason RTS stats is not used, is because RTS only contains the compressed data size.
about 5 years ago in Db2 for z/OS 0 Not under consideration

Add new Status for stopping Databases that will be Dropped or decomissioned

When you work for several accounts it's not easy to know whether a DB or TS has been stopped on purpouse or just due to some previous error. I think that some new status would be great, some Advisory STOP, something that doesn't allow people to us...
9 months ago in Db2 for z/OS 3 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 0 Not under consideration

Db2 image copies to S3 storage

With new storage technologies available, it would be nice if Db2 utilities could write image copies directly to S3 storage.
10 months ago in Db2 for z/OS 1 Not under consideration

Modify the DSNJU003 utility to allow it to define anything stored in the Db2 BSDS

When creating and new Db2 member, we must bring it all the way up before we can create the bufferpools, size them, and set the thresholds. We would like the ability to defined them prior to starting the Db2 member/subsystem. When creating an alias...
over 2 years ago in Db2 for z/OS 1 Not under consideration

FL LEVEL support

In Db2 12 the Functional Level is currently *not* externalized in various places where it most definitely should be. Notably the PLAN_TABLE, IFCID 316 and IFCID 401. If you are attempting tuning you *must* know under which FL level the SQL in ques...
almost 7 years ago in Db2 for z/OS 0 Not under consideration

Rename column should be possible if View is on table

We encountered that Rename column is not possible if a View esists on the appropriate table. We would like to exploit this new function (Rename Column), but we have views, which does not allow that. We already have a similar requirement MR02141152...
about 12 years ago in Db2 for z/OS 1 Not under consideration

Full Column Match and I1 Access on SQL with Correlated Sub-Queries Containing Column Expressions and Supporting IoE

Some queries with column expressions - DATE(A1.EFCTV_TS) <= DATE('04/05/2020') for example, and an Index on Expression to support the expression are achieving I1 access while others are not. It appears this is because of how the query is curren...
about 4 years ago in Db2 for z/OS 2 Not under consideration

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