IBM Data and AI Ideas Portal for Customers


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Db2 for z/OS

Showing 798

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...
over 4 years ago in Db2 for z/OS 0 Not under consideration

Runstats: additional opti...

Runstats will fail during execution if an object is unavailable or still does not exist (although 'define yes'). Please provide an option to skip those objects and continue with next object.During LISTDEF there is the option e.g. ITEMERROR SKIP to...
almost 8 years ago in Db2 for z/OS 0 Not under consideration

Allow system administrators to specify bufferpool sizes in "M" or "G", rather than pages.

With big memory and bufferpools measured in gigabytes, sizing pools by number of pages becomes tedious and error-prone. A 1GB pool requires one to specify -ALT BPOOL(BPx) VPSIZE(262144). A 5GB pool would be VPSIZE(1310720). Most users use "round" ...
over 5 years ago in Db2 for z/OS 0 Not under consideration

IFI READS support for IFCID 105

IFCID 105 contains information needed to map DBID/OBID values to object names. This information is produced on the STATS interval and contains mapping for EVERY object currently open to DB2. On large systems, thousands of IFCID 105 records may be ...
about 1 year ago in Db2 for z/OS 1 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.
over 4 years ago in Db2 for z/OS 0 Not under consideration

Update new V12 RTS catalog columns after reorg

In Db2 for z/OS v12, there are new catalog columns in the RTS tables such as:SYSIBM.SYSTABLEPART-TYPE-PAGENUM-BPOOL-PGSIZE-DSSIZE- MEMBER_CLUSTER-COMPRESSRATIO SYSIBM.SYSTABLESPACE-PAGENUM -INSERTALG -PQTY-STORTYPE -STORNAME -VCATNAMEetc. These co...
over 5 years ago in Db2 for z/OS 1 Not under consideration

Repair DBD Utility wont abend with dump while trigger found on a none existing table

regular running check repair DBD on systems. repair dbd abends when a database was found with triggers pointing on tables objects that does not existist any longer.
over 2 years ago in Db2 for z/OS 1 Not under consideration

Indexing on log

We have tremendous log records populated on production system everyday. But logs are stored in log dataset simply sorted by timestamps even they are for different application events, system events and so on. That leads to bad log reading performan...
over 5 years ago in Db2 for z/OS 1 Not under consideration

Drop Databases Created by Implicit Mapping Tables

Problem statement/ pain point: We have started to use on-line reorgs without specifying the mapping table because v11 will generate one for you. Pretty cool. Db2 will create a database, DSNnext_db_identity_number, create a table space, create the ...
over 5 years ago in Db2 for z/OS 1 Not under consideration

Enhance ALTER INDEX that columns can be reordered without drop and recreate

Recently we had a major incidence in production because an automatic bind happened after the drop of an index of a very big table and before the recreate of that index, although the Create used the Option DEFER YES. We wanted to reorder some colum...
over 5 years ago in Db2 for z/OS 4 Not under consideration

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