Chapter 4 Reference 45

Using Covering Indexes to Improve Query Performance

Joe Webb

simple-talk.com 2008 red-gate.com

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As cited in DDIA

Joe Webb. "Using Covering Indexes to Improve Query Performance." simple-talk.com, September 2008. Archived at perma.cc/6MEZ-R5VR

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Using Covering Indexes to Improve Query Performance | Simple Talk

Designers of database systems will often assume that the use of a clustered index is always the best approach. However the nonclustered Covering index will usually provide the optimum performance of a query.

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