IBM Data and AI Ideas Portal for Customers


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Db2 for z/OS

Showing 958

DB2 Autostats enhancement; create Runstats Profiles without COLGROUPs already covered by KEYCARD

AUTOSTATS creates RUNSTATS Profiles containing COLGROUPs which are already covered by KEYCARD. This leads to additional RUNSTATS activities and wastes resources.
about 9 years ago in Db2 for z/OS 1 Not under consideration

remove restrictions on which value expressions can be used with like predicate

IBM Cognos has previously request DB2 Z to remove restrictions on what value expressions can be used in a like predicate. Those restrictions are not imposed by DB2 LUW or I and other vendors. The impact on IBM Cognos (and customers) is that busine...
about 9 years ago in Db2 for z/OS 0 Not under consideration

EXPLAIN Authority - Include Explain of Dynamic Stmt Cache

Include Explain of Dynamic Statement Cache with the EXPLAIN authority or create a new authority that has EXPLAIN plus EXPLAIN STMTCACHE but not all the authority of SQLADM (ie update of DB2 Catalog Tables)
about 9 years ago in Db2 for z/OS 1 Not under consideration

Make regression functions from DB2 LUW supported in DB2 z/OS

Implement regression functions in DB2 z/OS that have been available in DB2 LUW for several years. The two highest priority functions are REGR_SLOPE and REGR_INTERCEPT.
about 9 years ago in Db2 for z/OS 1 Not under consideration

Add and drop include columns to/from unique index as a pending change

To accomplish high availability for schema changes in a 24/7 environment, an addition of an Include Column to a unique index should be implemented as a pending change that is materialized by an online REORG. Dropping an include column from a uniqu...
about 9 years ago in Db2 for z/OS 0 Not under consideration

Concatenation of Timestamps not possible in DB2 for z/OS

This SQL runs in DB2 LUW but not in DB2 z/OS: WITH CTEREVUR AS( SELECT OID, CREATEDBY, CREATEDAT, NAME, VALIDTO, VALIDFROM, UPDATEACTION, REPLACEDAT, TIMESTAMP_FORMAT(VALIDFROM, 'YYYY-MM-DD') || TIMESTAMP_FORMAT(VALIDTO, 'YYYY-MM-DD') AS COMBINE F...
about 9 years ago in Db2 for z/OS 1 Not under consideration

DB2 for z/OS ALTER FUNCTION REPLACE for inline SQL scalar and SQL table functions

Create an ALTER FUNCTION REPLACE statement for inline SQL scalar and SQL table functions such as already exists for compiled SQL functions and native SQL procedures. This would give the ability of the user to modify the source code for these funct...
about 9 years ago in Db2 for z/OS 0 Not under consideration

Enhance Optimization Hints for Dynamic SQL

The current infrastructure for access path stability for dynamic SQLs does not have a mechanism to do patter matching on SQL statement. If access path stability is needed on a SQL where the predicates have actual literal values and the values chan...
about 9 years ago in Db2 for z/OS 1 Not under consideration

ABND=513-04 in LMOD DSNUT101 for: REORG AUX YES of a PBG TS (with LOB columns) and when STACK YES is specified for TEMPLATE

Environment: DB2 V10, data sharing, z/OS 1.13 .Currently an 'ABEND513-04 in LMOD DSNUT101' can happen under the following two conditions for REORG tablespace with inline image copy generation:.1) REORG with parm AUX YES is set for a PBG TS with LO...
about 9 years ago in Db2 for z/OS 1 Not under consideration

Request for a new zParm parameter, named for example IXCOPY to be set to YES or NO in order to choose how DB2 creates IX

This RFE requests a new zParm parameter, named for example IXCOPY to be set to YES or NO in order to choose the default for indexes creation:- if IXCOPY = NO (default) DB2 will continue to work as now, that means that DB2 will create all indexes C...
about 9 years ago in Db2 for z/OS 0 Planned for future release

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