I have a query that accesses a table with a non-clustered index. When I drop the index and run the query, it takes 1.25 minutes to run. With the index, it takes 2 seconds to run. Yet, the execution plan is the same with or without the index. How can that be?
Free Guide: Managing storage for virtual environments
Complete a brief survey to get a complimentary 70-page whitepaper featuring the best methods and solutions for your virtual environment, as well as hypervisor-specific management advice from TechTarget experts. Don’t miss out on this exclusive content!