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SQL Server Query Performance Tuning,Fourth Edition by Grant Fritchey

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CHAPTER 10

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Database Engine Tuning Advisor

SQL Server’s performance frequently depends upon having the proper indexes on the database tables. However, as the workload and data change over time, the existing indexes may not be entirely appropriate, and new indexes may be required. The task of deciding upon the correct indexes is complicated by the fact that an index change that benefits one set of queries may be detrimental to another set of queries.

To help you through this process, SQL Server provides a tool called the Database Engine Tuning Advisor. This tool can help identify an optimal set of indexes and statistics for a given workload without ...

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