Before an upgrade, look for text and image columns, old rules and defaults, and Stretch metadata. These queries show what is there.
Do Queries Always Respect Cost Threshold of Parallelism? – Interview Question of the Week #216
Do queries always respect the Cost Threshold for Parallelism? Not always, and a quick AdventureWorks test with the execution plan shows why.
SQL SERVER – Difference Between Status in SP_Who2 – Running, Pending, Runnable, Suspended, Sleeping
What is the difference between Running, Runnable, Pending, Suspended and Sleeping status in sp_who2? I explain each one simply, in terms of CPU and IO.
Watching Many Servers Without Buying Anything
Use scheduled snapshots to monitor SQL Server with central storage, failure reporting, and four focused queries collected every five minutes.
SQL SERVER – Priority Boost and SSMS 18
My client thought SQL Server dropped the Priority Boost setting. It did not. Here is what changed with Priority Boost and SSMS 18 on the Processors page.
How to Know When Memory Constraints are Negatively Impacting CPU in SQL Server? – Interview Question of the Week #216
How do you know when memory constraints are hurting CPU in SQL Server? Someone asked me this loaded question before a Health Check, and here is my answer.
SQL SERVER – Default Worker Threads Per Number of CPUs
The default Worker Threads limit depends on SQL Server version, logical CPUs and memory. A workshop reader asked about automatic configuration.