Covering Index


An index, when used for an index-only scan.

About the Author

Photo of Markus Winand
Markus Winand tunes developers for high SQL performance. He also published the book SQL Performance Explained and offers in-house training as well as remote coaching at http://winand.at/

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different execution plans after failing over from primary to standby server

Sep 17 at 11:46 Markus Winand ♦♦ 741
oracle index update
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Generate test data for a given case

Sep 14 at 18:11 Markus Winand ♦♦ 741
testcase postgres