Chapter 8. Query Tuning and Optimization
In the last chapter, we talked about table partitioning. We introduced table partitioning, how to choose which table needs it, how to benefit from it, how to optimize it, how to tell the system to make use of it, and what the alternative options are if you do not want to go for the traditional procedures. In this chapter, we are going to cover how a query gets executed, ways to tune queries, generating explain plans, and each and every plan node. It also covers tuning a query, dealing with caches, extensions available for caching/warming the data, Optimizer settings to cache data, and how to use Optimizer hints.
Query tuning
Before discussing query tuning, first we should know how to write a query, and then ...
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