Tech Tips in DB2: INSERT, UPDATE or MERGE
“I am not young enough to know everything.” - Oscar Wilde INSERT, UPDATE, DELETE – It is a milestone of the SQL, and it appears that nothing can be added. Real life, though, has many more cases than...
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DB2 Tips: INDEXES and Performance Facts – Part 1
Introduction Even if you have just started to work with RDBMS, you may have heard that using indexes is good. While there is a plethora of information on the Internet, my goal is to choose and...
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DB2 OLAP function may crash DB2 instance.
Two weeks ago our DB2 team had a real stress test. Without any particular reason DB2 Production server of one of our clients began to freeze or crash. Monitoring system falsely believed that the...
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DB2 Tips: INDEXES and Performance Facts – Part 2
In my INDEXES and Performance Facts – Part 1 article I’ve described basics of indexes. You may want to read it first. Today I will continue to answer most frequently asked questions about indexes....
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