As a consultant whose job description includes putting out performance fires, I get to see a lot of problematic queries that can dramatically harm overall server performance and throughput ...

SQL Server comes with a feature called Query Store, which provides some performance details, including wait information. For more deeper diagnostic information there are a handful of third-party ...

Query Store (QS): Introduced in SQL Server 2016, QS is similar to an airplane flight recorder with a specific focus on query plans and their performance. QS captures the history of queries, their ...

When you use index views in the right situations, they can dramatically improve the performance of SQL Server queries. Tim Chapman explains why performance testing is the best way to tell if ...

SOS_SCHEDULER_YIELD —SQL Server instances with high CPU usage often show the SOS_SCHEDULER_YIELD wait type. This doesn’t mean the server is underpowered; it means further research is needed to find ...

However, there are any number of queries in any application that SQL Server may never see again (at least in, for example, the next 24 hours). The plans for these "one-time" queries are taking up ...