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 980

SQL performance is bad after V10 migrate.

Our customer migrated DB2 V10(NFM) from V8(NFM).In particular query,processing time took one minute in the case of DB2 V8,but DB2 V10 increased to 11 minutes. The VIEW has been used by the customer LEFT OUTER JOIN 50 times near internally.As a res...
over 10 years ago in Db2 for z/OS 1 Not under consideration

"Index on expression" should be used more

By implementing an "index on expression", a DBA has the ability to tune many queries that are written poorly without changing the query. This is very useful and allows a DBA to rapidly respond to a performance problem. However, there are some time...
over 10 years ago in Db2 for z/OS 4 Not under consideration

Auth to EXCHANGE CLONE Tables

This is very similar to an RFE that i submitted for MQTs...ID : 39165'Auth to Refresh Table for MQT'Under Consideration We have the same situation for CLONE Tables. The developers wish to run the EXCHANGE using Dynamic SQL, but the RACF ID that ru...
over 10 years ago in Db2 for z/OS 0 Not under consideration

Ability to ALTER BUFFERPOOL AT PARTITION LEVEL

We have partitioned by Growth table of size 1.5TB. It is defined in the bufferpool BP2. We noticed that the average row length of the rows is around 2000 and hence by altering the tablespace to BP16K0, each page will contain more rows there by giv...
over 10 years ago in Db2 for z/OS 1 Not under consideration

We'd like a way to ALTER INLINE Scalar Functions

As noted in our 55126.379.000 PMR.... ‎ We recently encountered an issue when the need arose to change an inline UDF that has dependent objects (i.e. stored procedures). We ‎found we cannot simply ALTER the UDF as we do when changing a stored ...
over 10 years ago in Db2 for z/OS 1 Not under consideration

Collect & Save DB2 Statistics Every Minute

Lack of “big picture” affects ability to tune DB2.When a DB2 performance problem is bought to our attention, the first thing that we need to determine is whether the problem is significant or not. Addressing an insignificant problem wastes tim...
over 10 years ago in Db2 for z/OS 1 Not under consideration

I would like to create a "non-inline" SQL function that delivers a result set in DB2 for Z.

I would like to create a "non-inline" SQL function that delivers a result set in DB2 for Z. At the current time, this type of SQL function can be created on a DB2/LUW platform but the DB2/Z platform lacks this function. I look in the DB2/LUW manua...
over 10 years ago in Db2 for z/OS 2 Not under consideration

Currently Committed for UPDATE

In DB2 10 for z/OS a new feature allowing currently committed data was deployed, enabling an application reading data to have the option of viewing previously committed work. This allowed for greater application concurrency, comparability with Ora...
over 10 years ago in Db2 for z/OS 0 Not under consideration

SQL Pruning for 0 > 1

The following SQL will not do a GETPAGE on 'table1' because the DB2 Optimizer recognizes that the predicate 'WHERE 0 = 1' has an empty result set: Select * from table1 where 0 = 1 The same is true if a date is used.:Select * from table1 where '201...
almost 11 years ago in Db2 for z/OS 1 Not under consideration

Preform "EXCHANGE" to "X" tables in one unit of work

add a feature to the sql exchange command to enable one unit of work for several tables.
almost 11 years ago in Db2 for z/OS 1 Not under consideration

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