Thomas LaRock: "Without a basic understanding of wait events and how the occur, you will waste a lot of time trying and guessing at how to improve the performance of a query." Optimizing SQL Server ...

Query tuning is key to peak performance in SQL Server databases. However, lots of developers and DBAs constantly struggle to pinpoint the root cause of performance issues and spend way too much time ...

This paper demystifies query tuning by providing a rigorous 12-step process that database professionals at any level can use to systematically assess and adjust query performance, starting from the ...

Need more info why it's running like a dog; do you notice when you run a query that it takes a while to get results back? What are you exactly doing with the database?

A common SQL habit is to use SELECT * on a query, because it’s tedious to list all the columns you need. Plus, sometimes those columns may change over time, so why not just do things the easy way? But ...