I have one table it has 5 columns like col1...col5 . i need to create non clustered index on col2,col3,col4. I did .. then my boss is asking me create one more non clustered index on col4,col3,col2 ...
We are running some performance tuning on our database in SQL Server. The database in itself is pretty small with around 13 tables. But there are multi-level relationships between tables. When I try ...
Why does removing a RID by creating a clustered index lose parallelism and slow down execution by 2X
If I remove a RID lookup by replacing 2 non-clustered indices (non unique) with 2 identical clustered indicies (non-unique) where there weren't any before, why does this query slow down by a factor ...
I've read different ideas to set FILLFACTOR and then monitor fragmentation over time (#1: 5 Things About Fillfactor, #2: Database Maintenance Best Practices Part II – Setting FILLFACTOR). Instead of ...