IBM Data and AI Ideas Portal for Customers


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Db2 for z/OS

Showing 977

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...
about 11 years ago in Db2 for z/OS 1 Not under consideration

Enhance display utility command

It would be useful to be able to determine if a utility (such as REORG) is safe to terminate w/o forcing a recovery. I'd like to see if it's using a shrlevel other than NONE.
about 2 years ago in Db2 for z/OS 2 Not under consideration

Multiple PROFILE tables with suffix

In the same datasharing group we have members with similar but not identical DDF workload. From an application server same AUTHID runs with 100 DBAT but in another member with 500 DBAT. If we had a chance to use multiple PROFILE tables as like RLF...
about 2 years ago in Db2 for z/OS 1 Functionality already exists

Enhance DSN1COMP to allow more than one input per job step

Currently only one full copy image may be included in each job step //jobname JOB acct information//COMPEST EXEC PGM=DSN1COMP,PARM='FULLCOPY'//STEPLIB DD DSN=prefix.SDSNLOAD,DISP=SHR//SYSPRINT DD SYSOUT=A//SYSABEND DD SYSOUT=A//SYSUT1 DD DSN=COPY0...
about 5 years ago in Db2 for z/OS 0 Not under consideration

DB2 enhancement of global transaction processing

We have COBOL batch procedure started on z/OS that gets always abend for SQL error -911 . The Cobol Host program1 does DB2 SP in order to transfer control on MicroFocus COBOL on linux and then return on z/OS by doing another SP call where another ...
about 2 years ago in Db2 for z/OS 4 Not under consideration

CHECK DATA for informational referential constraints

We use informational referential constraints, i.e. foreign keys defined as NOT ENFORCED for some relationships between tables. When running the CHECK DATA utility for a table with foreign keys defined as NOT ENFORCED the foreign keys are not check...
about 7 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.
over 8 years ago in Db2 for z/OS 1 Not under consideration

Monitor thread causing DB2 abend

Hi Team, We had a Db2 system abend for production environment because of QUERY ON BLOCKING_THREADS has cancelled . We had a business impact for this. If we can monitor such thread proactively before it get cancel, then it may save us from DB2 aben...
about 1 year ago in Db2 for z/OS 1 Functionality already exists

Add flag field to IFCID 402 to indicate when a reset has occurred.

In Db2 Version 13 and V12 (with APAR PH50729), Db2 resets IFCID 402 statistic counters immediately if the warning or exception threshold for the associated profiles is changed when you issue a START PROFILE command. It’s difficult to tell if the c...
about 1 year ago in Db2 for z/OS 1 Not under consideration

Add SET CURRENT QUERY ACCELERATION WAITFORDATA setting into Profile Table in Db2 for z/OS

When Waitfordata setting is required for HTAP queries in IDAA for dynamic SQLs, waitfordata should be defined either in zPARM or as a register setting in application before the SQL statement which requires application change. It would be better to...
about 1 year ago in Db2 for z/OS 2 Functionality already exists

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