Are My SQL Server Indexes Being Used?
Indexes can be incredibly beneficial to your database performance; however, they do come with a cost—indexes both consume storage space and affect insert performance. Therefore, it is important as part of your index maintenance procedures that you periodically check to see if your indexes are being used. Many times, indexes are created in the belief they are needed but in fact they are never used. You can reduce that IO overhead on inserts when you remove unnecessary indexes. How Do You Find Them? Glenn Berry (B|T) has a fantastic script as part of his diagnostic scripts (link) that helps identify… Continue reading