Joey on SQL Server A Deep Dive into SQL Server 2022's Query Performance Features, Part 1 An update to the cardinality estimator feature in SQL Server 2022 will be one of the biggest changes to the ...

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 ...

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 ...

There's a very handy new tool from Microsoft called the Database Experimentation Assistant (DEA). The DEA makes it very easy to conduct A/B testing for SQL Server upgrades, providing quantitative ...

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 ...

As I discussed in an earlier column, SQL Server keeps a plan cached for each query it sees (assuming the query requires planning in the first place, of course). That's great for speeding up processing ...