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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...
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...
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...
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...
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