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Appendix A: Tools to check a performance problem - Pg. 253

A Appendix A. Tools to check a performance problem When a performance problem is occurring, it is important to understand what is happening with the system, even when you know that you are having a problem with SQL queries. There are several commands that you can use to see a high level view of what the system is doing. Use the tools in this appendix to help you in looking at the big picture. They will help you to try