IBM Data and AI Ideas Portal for Customers


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Db2 for z/OS

Showing 978

Rebuild should materialize pending changes on indexes

Recently we had big problems with index splits. Therefore we altered the bufferpool from 4K-pages to 8K-pages and run a rebuild. But we had to ran a reorg on the whole tablespace, which has about 1 billion rows and a few indexes, which we wanted t...
about 7 years ago in Db2 for z/OS 1 Not under consideration

RUNSTATS Partition Pageset Processing

DB2 RUNSTATS process opens all pagesets for all partitions and all indexes up front and keeps them open during the life of the utility.Could there be changes made so RUNSTATS utility open pagesets and releases pagesets when needed?
about 7 years ago in Db2 for z/OS 0 Not under consideration

Moving extra area for IRLM latch information provided by PI93817 from QTXA to a new section.

This is related to PMR 73570,611,760. Applying a PTF for PI93817, new 124 bytes fields for IRLM latch contention counters are added to IFCID QTXA section, which is shared between statistics and accounting trace. However, those new fields are used ...
almost 6 years ago in Db2 for z/OS 0 Not under consideration

Auditing administrative authorities in DB2 zOS with RACF-Exit DSNX$XAC

DB2 IFCID361 should be written when an administrative authority is used - Independent of the security exit used. When using the full RACF-Exit DSNX$XAC DB2 IFCID361 is not written/supressed , as RACF grants the access -- but does not give back to ...
almost 6 years ago in Db2 for z/OS 1 Not under consideration

DDLTOX multiplier for IRLMRWT (allow values between 0 and 1)

DB2 subsystem parameter DDLTOX allows us to specify how long a DDL request will wait for a resource before timing out.We have it set to the default value of 1, so the value of IRLMRWT applies, which we have set to 60 seconds. (Note that this is to...
over 4 years ago in Db2 for z/OS 0 Not under consideration

To add a built in REVERSE( ) function in the SQL of DB2

CCB want to add an build-in REVERSE( ) function in the SQL of DB2 for z/OS. There is an alternative way of using UDF, but customer worry about it's perfromance, they prefer to add an build-in REVERSE( ) function in SQL. The REVERSE function is use...
almost 6 years ago in Db2 for z/OS 1 Not under consideration

Profiles ; time between DSNT771/2I messages made variable

Currently when a Profile is triggered (warning or exception) DSNT771/2I are issued every 5 minutes as long as exceptions/warnings are met in the timeframe. When an exception is triggered (maximum connections from IP for instance) the issue will oc...
about 1 year ago in Db2 for z/OS 1 Not under consideration

SQL Data Insights should show outliers relative to all rows in the table

Currently the AI_SIMILARITY function only shows outliers with respect to a specific entity in the table. There should be a way to determine outliers taking into account all rows in the table. This would be benificial in the case of fraud detection...
over 2 years ago in Db2 for z/OS 0 Future consideration

options itemerror

I'd like to see any error handled by the itemerror parm of the options utility. Currently it only handles those errors that cause a RC8. If it is an unavailable resource or something else that causes an abend the step will abend rather than proces...
over 8 years ago in Db2 for z/OS 2 Not under consideration

Unique Index, where one specific value can be duplicate

MR0125102749 GGDB209018Enhance the create index similar to the UNIQUE WHERE NOT NULL clause
almost 12 years ago in Db2 for z/OS 1 Not under consideration

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