IBM Data and AI Ideas Portal for Customers


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Db2 for z/OS

Showing 984 of 15507

304 VLDB - Altering Indexes to Change PIECESIZE Not Online

Change the PIECESIZE of indexes puts the index in rebuild pending status. We need the ability to increase the PIECESIZE where index compression alone is not sufficient to scale an index.
over 10 years ago in Db2 for z/OS 1 Not under consideration

Increase (over current limit of 10000) the value for Zparm MAXARCH

Is it possible to increase (over current limit of 10000) the value for Zparm MAXARCH (archive log volumes that are to be recorded in the BSDS). Our Production System sometimes cuts over 5,000 Archive Logs in the business' standard Image Copy reten...
about 4 years ago in Db2 for z/OS 1 Not under consideration

A Sort-Merge Join should be considered when joining on a SUBSTR expression

When tuning the following query, I saw that changing the "INNER JOIN" to a "FULL JOIN" caused it to perform many times better (which changed the join from a NLJ to a SMJ): SELECT ARCHIVE_STRT.LOCAL_TS AS LOCAL_TS_STRT, TIMESTAMPDIFF(2, CAST(ARCHIV...
about 4 years ago in Db2 for z/OS 1 Not under consideration

DB2 zOS LOAD SHRLEVEL CHANGE - provide # of rows processed

Enhancement request: When LOAD SHRLEVEL CHANGE utility abended, DB2 should provide the number of input records processed. Justification: If a LOAD SHRLEVEL CHANGE utility abended and then restarted successfully, the utility will skip the processed...
over 10 years ago in Db2 for z/OS 1 Not under consideration

CATMAINT / ENFM REORG enhancement

CATMAINTs and ENFM REORGs causes major disruption if running alongside current workload. Continuous availabilty requirements means sign-off for planned DB2 outages (version upgrades or catalog reorgs) are very difficult to obtain/justify.
over 10 years ago in Db2 for z/OS 1 Not under consideration

Repair Catalog of Indexspaces

After using DSN1COPY to copy table- and indexspaces from one subsystem to another it is possible to do a REPAIR CATALOG to update catalog informations about RBA format, Row format and versions. There is no possiblity to repair index RBA format. We...
over 8 years ago in Db2 for z/OS 1 Not under consideration

Allow SYSTOOLS and SYSFUN schemas to be permitted separate from SYSCTRL

Currently, SYSCTRL is required for creation of procedures/functions with schemas SYSFUN or SYSTOOLS, i.e. when running DSNTIJRT. We would like schemas such as "SYSTOOLS" and "SYSFUN" to be able to be permitted/granted separately from SYSCTRL, as S...
over 6 years ago in Db2 for z/OS 3 Not under consideration

DSNTEP2 number of rows printed is incorrect

DSNTEP doesn't count correctly the number of rows printer after 999999 rowsIt should be extended to more digits
over 8 years ago in Db2 for z/OS 1 Not under consideration

With RACF-exit, support auth cache refresh for RACF profiles with RACFVARS

Currently RACF ENF signals for the DB2 auth cache refresh are ignored if the profile contains a &RACFVAR class variable. This blocks the practical use of these profiles. In our case we have on one sysplex two different sets of DB2 subsystems(o...
over 4 years ago in Db2 for z/OS 1 Not under consideration

Make XML tablespaces more portable

Currently, there are 3 different internal structures that Db2 uses for the implicitly created table inside an XML tablespace: 3 columns, 5 columns with the START_TS/END_TS fields as BINARY(8), and 5 columns with the START_TS/END_TS fields as BINAR...
over 6 years ago in Db2 for z/OS 1 Not under consideration

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