Grizzly Bear (1/24/2011)
Then this begs the next question -- how do I know which NON_CLUSTERED index used this CLUSTERED index for "lookups" and how many times each did ?
You don't.
Only way to even get an idea is to look at the execution plans, but that's far from easy.
Gail Shaw
Microsoft Certified Master: SQL Server, MVP, M.Sc (Comp Sci)
SQL In The Wild: Discussions on DB performance with occasional diversions into recoverability