Tag: "performance optimize"
![](https://www.insidesql.org/blogs/media/users/tgrohser/.evocache/ThomasSpeaking.jpg/crop-64x64.jpg?mtime=1295858712)
increasing the performance of count(*)
Jan 26th
The fastest count(*) can be archived if you create a secondary index on top of a clustered index only containing the clustered key Carefull this is an index that will be used only here ... more »