Data statistics can have a huge impact on both whether an index is used, and also how it is used. In this article we examine these statistics, in particular identifying if they are up to date, since ...

Missing indexes are one reason why an SQL query takes longer (much longer) to complete. Here's how to find out about them and fix the problem. In my previous article, Identifying your slowest SQL ...

Build a lightweight SQL regression detector that tracks latency, detects anomalies, analyzes plans, and catches slowdowns ...

If you've just started writing SQL Server queries, there's a good chance you probably wrote a query, saw it return the right ...