IBM Data and AI Ideas Portal for Customers


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Db2 for z/OS

Showing 783

Avoid impact from query sort usage on more important online transactions workload

Nowadays usage of Sortworks by a single thread is limited by MAXTEMPS or the size of the overall available sortworks if MAXTEMPS is zero. Most time MAXTEMPS works well to protect our regular business against single queries with a lot of sort amoun...
almost 4 years ago in Db2 for z/OS 0 Not under consideration

Identify a more representative selectivity for common predicates

Our queries have predicates that many queries share in common where the default selectivity is significantly outside the range of what ever actually occurs. This results in poor and/or unstable query performance. For common predicates with high un...
over 10 years ago in Db2 for z/OS 1 Not under consideration

PLANNAME and PROGNAME in error-message if PROGAUTH(ENABLE) error

Hi When a program fails e.g. with reasoncode 00F3003B, I want to see in the error message, which row DB2 tried to find in SYSIBM.DSNPROGUATH, i.e. I need program- nad planname.
almost 8 years ago in Db2 for z/OS 1 Not under consideration

DSNTEP2 OUTPUT LENGTH

I would have a DSNTEP2 version with the output lenth 4096 bytes. Unfortunately I don't have the PLI compiler. Can you compile a DSNTEP2 version with the output legth 4096 and send me the load module so I can link edit an bind it . Many many than...
almost 5 years ago in Db2 for z/OS 3 Not under consideration

DSN1COPY to support LOB INLINE COPY as input

More than 80% of our data consist of LOB data. In case of drop recovery we depend on utilities such as DSN1COPY. Without this feature provided DSN1COPY cannot be used for drop recovery when we have to use a LOB INLINE COPY as input.
almost 4 years ago in Db2 for z/OS 0 Not under consideration

Enhance TRANSLATE working on character basis

The current TRANSLATE function is working on Byte Basis which is OK for EBCDIC but not for Unicode Data. Please provide a similar function as SUBSTRING which is working on character basis regardless of Underlying codepage! PMR23932,060,618
almost 5 years ago in Db2 for z/OS 2 Not under consideration

MERGECOPY only a subset of incremental ICs

System: Db2 for z/OS - UTILITY - MERGECOPYActor: DBA MERGECOPY is used to merge Full IC with Incrementals to build new Full which is far more faster to recover than full + set of incrementals. Merging a subset of incrementals (from the date of ful...
almost 6 years ago in Db2 for z/OS 1 Not under consideration

Use OPTHINT for package with version

Db2 uses the following PLAN_TABLE columns when matching rows that specify access paths to SQL statements: QUERYNO , APPLNAME , PROGNAME , VERSION , COLLID , OPTHINT If I use PKGVERSION(AUTO) during precompile I need to change my OPTHINT every time...
12 months ago in Db2 for z/OS 4 Not under consideration

Load Format Internal needs to validate if columns of internal format record is compatible with the table being loaded.

Load Format Internal needs to validate if columns of internal format record is compatible with the table being loaded. Recently this was partially addressed with APAR# PI71965; however, this APAR only checks if the record is greater than the maxim...
almost 6 years ago in Db2 for z/OS 0 Not under consideration

Add catalog information about how a compression dictionary was created (INSERT, LOAD, REORG)

Db2 is able to create a compression dictionary by INSERT, LOAD and REORG. If INSERT and LOAD are responsible, than the first x rows were not compressed (Db2 reads them to build a proper dictionary). If REORG is responsible for creating a compressi...
almost 5 years ago in Db2 for z/OS 0 Not under consideration

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