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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ADD A NEW IDEA

Statements (DDL and DML)

Showing 96

Improve poor query compilation performance due to long lock list traversal in DB2 10.1 and later

Beginning with DB2 LUW 10.1 DGTT-referencing DML started to take catalog locks and therefore we have to free them and potentially traverse long lock chain if the DML is a part of a long-running transaction potentially holding millions of locks. Th...
about 10 years ago in Db2 / Statements (DDL and DML) 0 Not under consideration

DB2 LUW to have option to ignore QUERYNO clause of SQL on DB2 z/OS

The client has many SQL for z/DB2 production environment with QUERYNO clause like the following sample.    SELECT /* Comment */           A_ID,           A_NAMEÂ&n...
about 10 years ago in Db2 / Statements (DDL and DML) 0 Not under consideration

Improve lock management

Eliminate a lock needed by a SELECT statement in order to performance a query without need to implement a dirty read - UR.Although there is a solution doing an uncommitted read on the transaction, it requires an application modification changing t...
about 5 years ago in Db2 / Statements (DDL and DML) 0 Not under consideration

Dynamic Execution Plan

At execution time DB2 recommend and implemment the best execution plan for a transaction/procedure automatically.
about 5 years ago in Db2 / Statements (DDL and DML) 0 Not under consideration

More heavy use of fetch first n rows to optimize the statement

see attachments (error of the server when submitting the RFE)
about 10 years ago in Db2 / Statements (DDL and DML) 0 Not under consideration

Control of Locksize and Maxpartitions for implicitly defined tablespaces.

We must be able to control parameters like locksize and maxpartitions on implicitly defined tablespaces.In DB2 V12R1M504 multi table tablespaces are deprecated, so we need to use implicitly defined tablespaces for QMF useres. Today we use segmente...
over 5 years ago in Db2 / Statements (DDL and DML) 0 Not under consideration

TO_MULTI_BYTE (oracle function)

It is required for higher oracle sql compatibility,
almost 6 years ago in Db2 / Statements (DDL and DML) 0 Not under consideration

PIVOT/UNPIVOT (oracle function)

It is required for higher oracle sql compatibility,
almost 6 years ago in Db2 / Statements (DDL and DML) 0 Not under consideration

connect_by_iscycle in Oracle

When we migrate from oracle application, the connect_by_iscycle is very difficult to implement at Db2 .
almost 6 years ago in Db2 / Statements (DDL and DML) 0 Not under consideration

v11.1.2.2 generates SQL plan missing rownum pushdown available in v10.1+

what reported in TS000061806 - v11.1.2.2+ specific missing rownum pushdown NOT seen in ("DB2 v10.1.0.3", "special_36763", "IP23516_36763", and Fix Pack "3")
over 6 years ago in Db2 / Statements (DDL and DML) 0 Not under consideration

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