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Execution Plan Cache Analysis

Abstract

The performance of any query depends on the effectiveness of the execution plan decided upon by the optimizer, as you learned in previous chapters. Because the overall time required to execute a query is the sum of the time required to generate the execution plan plus the time required to execute the query based on this execution plan, it is important that the cost of generating the execution plan itself is low. The cost incurred when generating the execution plan depends on the process of generating the execution plan, the process of caching the plan, and the reusability of the plan from the plan cache. In this chapter, you will learn how an execution plan is generated and how to analyze the execution plan cache for plan reusability.

Keywords

Variable Part Simple Parameterization Execution Plan Query Execution Query Plan 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Grant Fritchey and Sajal Dam 2009

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