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/

?Recent questions at
Ask.Use-The-Index-Luke.com

3
votes
1
answer
225
views

pagination with nulls

Oct 15 at 15:40 Lukas Eder 16
pagination
2
votes
1
answer
1.8k
views
0
votes
2
answers
1.1k
views

different execution plans after failing over from primary to standby server

Sep 17 at 11:46 Markus Winand ♦♦ 771
oracle index update