IBM Data and AI Ideas Portal for Customers


This portal is to open public enhancement requests against products and services offered by the IBM Data & AI organization. To view all of your ideas submitted to IBM, create and manage groups of Ideas, or create an idea explicitly set to be either visible by all (public) or visible only to you and IBM (private), use the IBM Unified Ideas Portal (https://ideas.ibm.com).


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Db2 for z/OS

Showing 986 of 15649

Improve optimizers cost estimation when recursive table expression invloved

Please refer to case TS004038133. Application developer uses SQL EXPLAIN to compare the cost of different SQL statement and decides which one to use. In one case, they found EXPLAIN reported lower cost for one SQL than other but in actual executio...
about 4 years ago in Db2 for z/OS 1 Not under consideration

DB2 trace accounting records constraint filter by contents

My customer needs to gather SMF101 performance record to obtain stored procedures performance metrics. This is very important for them in order to deploy a DB2 stored procedures in production so they can effectively troubleshoot performance issues...
over 12 years ago in Db2 for z/OS 1 Not under consideration

Add View Support to temporal time tables

Add support for views to tables which contain both SYSTEM and BUSINESS TIME. For single table views, please limit restrictions on ISRT / UPDT so that the view can be utilized in much the same manner as any other view.
over 12 years ago in Db2 for z/OS 1 Not under consideration

New pseudo-delete zparms

We've been told that pages trigger pseudo-delete cleanup when they become > 4% free entries. Please make this % a zparm. We would also like the calculation that triggers pseudo-delete cleanup to use another new zparm for the minimum # of entrie...
over 8 years ago in Db2 for z/OS 3 Not under consideration

Add SORTNPSI_USED To SYSIBM.SYSINDEXSPACESTATS

Use case/business impact. All indexes reorged on Sunday. Run daily process to identify any index needing reorged by interrogating RTS. Since NPSI organization can rapidly deteriorate, on Monday, Tuesday, Wednesday, Thursday, and Fri...
over 4 years ago in Db2 for z/OS 1 Not under consideration

Support Common Table Expression (CTE) in NTE

Today, the using of Common Table Expression (CTE) is limited only to the beginning of the select statement. There are many products, specially open source, but not only, that take every select statement and cover it by SELECT * from (nte). When ...
over 4 years ago in Db2 for z/OS 2 Not under consideration

existing “Current copy” is lost due to current db2 plan management scope

When we use PLAN management (Extended) option, the active “Current copy” will become “Previous Copy” during REBIND activity, and ORIGINAL COPY will be retained if it is created already or this current copy will be stored as ORIGINAL COPY ....
almost 9 years ago in Db2 for z/OS 1 Not under consideration

Improve performance of except statement

Hi, For the first time I had a use for the except statement. It is quite simple: SELECT DISTINCT LOG_PGM FROM BDSTB030_BDSLOG EXCEPT SELECT LOG_PGM FROM BDSTB031_BDSLOG_SLET I want all LOG_PGM from the first table, that is not in the secon...
over 4 years ago in Db2 for z/OS 1 Not under consideration

DB2 Automation Utility to convert from IBM RACF DB2 External Security to IBM DB2 Internal Security.

We are requesting a DB2 Automation Utility to convert from IBM RACF DB2 External Security to IBM DB2 Internal Security. This utility must be able to do the reverse of the RACF/DB2 Conversion Utility that was used to convert data in DB2 Internal Se...
over 4 years ago in Db2 for z/OS 1 Not under consideration

Reduce minimum value for Zparm MAXCONQW from 5 to 0

Our team is wanting to make use of MAXCONQN/MAXCONQW zparms, and they are wanting to have as much control of the values of these zparms as possible. The minimum value of MAXCONQW is 5 seconds, but we are wanting to have values between 0 and 5 for ...
over 4 years ago in Db2 for z/OS 2 Not under consideration

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