
4 OnDemand SQL Performance Analysis Simplified on DB2 for i5/OS in V5R4
1.1 Questions to ask yourself
If you are reading this book, you most likely currently have an SQL performance problem,
have experienced an SQL performance problem in the past, or are interested in learning how
to diagnose SQL performance. An important step in looking into any SQL performance
problem is to ask a few questions to determine whether the problem is with your SQL or a
system-wide performance problem. To clarify the problem, you must ask yourself the
following questions:
How do you know that there is a problem?
Where is the problem occurring?
Did you ever hav ...