IBM Data and AI Ideas Portal for Customers


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Db2 for z/OS

Showing 783

Deliver DSNHBNFE from SDSNSAMP in EBNF format

The DSNHBNFE member delivers a formal definition of the Db2 syntax in BNF format. However, tools like ANTLR can generate lexers/parsers automatically if the language is delivered in a EBNF format. https://en.wikipedia.org/wiki/Extended_Backus%E2%8...
over 1 year ago in Db2 for z/OS 13 Not under consideration

Please develop a tool to real time monitor BB1RMID

Dear DB2 for Z developers, Our critical banking client got to know there is a severe storage leak issue reported on the DB2 V12. It's addressed on the APAR PH45580 already. Meanwhile, however, the client still wants us to develop a tool which coul...
almost 2 years ago in Db2 for z/OS 0 Not under consideration

Index support for "expression op expression"

In our environment, we have many queries with predicate: "expression op expression". As they don't use indexes they're performing a table scan. We would like DB2 to be able to use indexes to resolve this type of predicate. Examples: SELECT [id], [...
over 2 years ago in Db2 for z/OS 1 Not under consideration

Db2 z/OS real storage management (Case TS006310627)

After the observation of a significantly increase of the CPU consumption in our Db2-MSTR regions, we opened case TS006310627 at IBM since the reason was not evident. The result of the analysis with IBM showed up that probably APAR PH31684 caused t...
over 2 years ago in Db2 for z/OS 0 Not under consideration

Separate workfile allocation into different latches

Currently, the WACT latch governs all workfile allocation usage. When the customer ran workload failover testing, the WACT latch proved to be a bottleneck. Root cause analysis determined that the bottleneck came from the fact that multiple types o...
over 3 years ago in Db2 for z/OS 3 Not under consideration

Authorization for ALTER Commands at schema level

Our DBA team receives countless requests to reset sequence values for our developers. This is a tedious task that should be a self-service task for our developers. We need some mechanism to allow our developers the ability to alter these sequences...
over 3 years ago in Db2 for z/OS 2 Not under consideration

PHASE II : Support for python ibm_db driver on z/OS using z ODBC driver

The requirement is to offer connectivity to Db2 on z/OS natively by using the z/OS ODBC driver. The python driver has been enhanced to successfully compile on the z/OS platform, and basic validation and regression suite validation has been done. W...
almost 4 years ago in Db2 for z/OS 1 Not under consideration

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

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