IBM Data and AI Ideas Portal for Customers


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Db2 for z/OS

Showing 985

FORMAT INTERNAL with REORG DISCARD

REORG with DISCARD does not support FORMAT INTERNAL like UNLOAD and LOAD. REORG with DISCARD is used in many use cases for Archiving OLD data. Having FORMAT INTERNAL in REORG with DISCARD would be good if DISCARD dataset is in INTERNAL format for ...
about 12 years ago in Db2 for z/OS 1 Not under consideration

DB2 system checkpoint size detection

Request a way to display DB2 system checkpoint size and set an alert when it reaches a certain size.
about 8 years ago in Db2 for z/OS 1 Not under consideration

Bar particular DB2 group members from castout ownership

Currently the first member of a DB2 share group that lodges group update intent becomes the castout owner for that buffer pool. In the real world some LPARs can be significantly capped damaging write/update performance for the whole share group. W...
about 8 years ago in Db2 for z/OS 1 Not under consideration

DB2 "DISPLAY PROCEDURE" Command To Include Native Store Procs.

Change "DISPLAY PROCEDURE" Command To Include Native Store Procedures
about 12 years ago in Db2 for z/OS 1 Not under consideration

Audit 145 records; always supply a (non-zero) QW0145SI value.

As per PH04538, under the current design, "we are afraid that zero QW0145SI can not be eliminated as it happens when the stmt is not cached nor static base on current design. "
about 4 years ago in Db2 for z/OS 1 Not under consideration

DB2 Deletion of Empty PBG Partitions with no UTUT access after switch phase

When removing empty partitions in a PBG tablespace after the switch phase of the reorg, the space is put into UTUT access, which causes -904 00C90082 to be returned to the application.
about 8 years ago in Db2 for z/OS 1 Not under consideration

Mapping Z/OS Enclaves to DB2 Threads

We have an application running on Z/linux the application access DB2 on Z/OS through DDF. The application has few threads active in DB2 and we have ENCLAVE active in Z/OS we are trying to map which enclave belongs to which DB2 thread. If we can ge...
over 12 years ago in Db2 for z/OS 1 Not under consideration

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

IFCID 316 needs counter for tablespace scans on user tables only

Customers tool uses QW0316NT that is showen as tablespace scans. This counter does not only include scans on user tables but also on workfiles.. QW0316NT (or STAT_RSCN) intentionally includes scans of all workfiles... not only workfiles used for s...
over 12 years ago in Db2 for z/OS 1 Not under consideration

REORG DISCARD support writing a spanned record

Running a REORG DISCARD on a user tablespace with LONG VARCHAR message :- DSNU297I - COMPOSITE RECORD SIZE TOO LARGE FOR.......... is received.BTW, UNLOAD without 'NOPAD', the problem occur; whetheras, with 'NOPAD', the problem doesn't occur.
over 12 years ago in Db2 for z/OS 1 Not under consideration

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