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 ...

The riders in the Tour de France are probably the most monitored athletes in the world. In preparation for the race, every ounce of food a rider consumes is specially formulated to give him maximum ...

Database professionals agree – SQL Server performance tuning is hard. And on top of that, it never stops because complex database environments are always changing with upgrades, application updates ...

SQL Sentry, Inc., a developer of software products that optimize the performance of Microsoft SQL Server environments, and DBSophic, a provider of performance management products for database-centric ...

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?

As I described here, Power BI can send SQL queries in parallel in DirectQuery mode and you can see from the Timeline column there is some parallelism happening here – the last two SQL queries ...