Db2 Query Workload Tuner for z/OS

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Make Workload Index Advisor available to DB2 for z/OS Developer Extenstion users

Index Advisor provides index recommendations focusing on single SQL queries To avoid index redundancies developers need to be able to invoke Workload Index Advisor in order to obtain consolidated index recommendations based upon table or applicati...

30 days ago in Db2 Query Workload Tuner for z/OS 0 Submitted

6 VOTE

Create QWT API or script to input SQLs and return recommendations reports file

This product working depends on personal act to access DSM or Data Studio to select type of input, set the filter, execute the job analysis and receive recommendations report, so we'd like do that by external input like a job, script or QWT API.

over 3 years ago in Db2 Query Workload Tuner for z/OS 1 Planned for future release

7 VOTE

OQWT in DSM for Z/OS Query Advisor Enhancement needed

Query Advisor missing obvious SQL predicate datatype inconsistency While researching a production issue in all our production systems with a remote DB2 program, we ran OQT in DSM and found that the QUERY ADVISOR was missing a very obvious and key ...

about 5 years ago in Db2 Query Workload Tuner for z/OS 1 Not under consideration

9 VOTE

QWT: Incorporate the same unit and costs as SQL/PA

We want QWT to incorporate the same unit and costs as SQL/PA (same QUNIT costs and dollar equivalent costs). We use these costs to compare expected performance of a query across the 30 production regions we manage. our management is always looking...

about 7 years ago in Db2 Query Workload Tuner for z/OS 1 Not under consideration

1 VOTE

Improve QWT to suggest missing join predicates when not involved in declarative RI

Need to improve the tool to advise against missing lead index columns in a join. More detail in additional detail section.

11 months ago in Db2 Query Workload Tuner for z/OS 0 Future consideration

8 VOTE

Enhancements to OQWT Query Advisor

We use OQWT advisors regularly for both reactive and more common proactive performance review The DSM tool seems to be working fine, although we really need the query and Access path advisors to work. One of my concerns with the advisors (OQWT (DS...

over 7 years ago in Db2 Query Workload Tuner for z/OS 1 Planned for future release

1 VOTE

Re-architect to not require permanent storage of userids and passwords for access

The current architecture of Tuning Management Services component of Db2 Query Workload Tuner for z/OS requires a permanent storage of a userid and password in order to facilitate use of QWT. Our shop uses Multi-Factor authentication for human user...

11 months ago in Db2 Query Workload Tuner for z/OS 1 Planned for future release

3 VOTE

Run QWT against DB2 catalog copy

Since we don't allow our DBA's to do analysis and tuning in our production we would like to be able to run QWT against the production catalog copy that we have in test. The workaround we have is not really comparable but we have a routine that can...

about 5 years ago in Db2 Query Workload Tuner for z/OS 1 Not under consideration

2 VOTE

provide procedure to clean up explain tables based on given criteria and build RI to aid that cleanup

each time a bind is run with explain(yes) rows are written to multiple explain tables but there doesn't seem to be a simple way to delete all those rows in all those tables so that only the rows that correspond to the explains of current, previous...

almost 4 years ago in Db2 Query Workload Tuner for z/OS 0 Planned for future release

1 VOTE

Synthetic DB2 for z/OS Statistics

At the university of Jena in Germany we invented a concept called synthetic statistics and implemented a prototype for DB2 for z/OS, which is able to generate DB2 statistics on a synthetic way only based on abstract Performance Indicators (PIs). P...

almost 7 years ago in Db2 Query Workload Tuner for z/OS 1 Not under consideration

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