The default Worker Threads limit depends on SQL Server version, logical CPUs and memory. A workshop reader asked about automatic configuration.
GET_BIT: Read a Flag at a Zero-Based Position
GET_BIT reads a zero-based bit position. Compare tinyint offsets, retain the source value, and check type width before selecting a position.
SQL SERVER – How to Get Started with Docker Containers with Latest SQL Server?
My Docker container broke a day before my SQLBits talk and I had to rebuild it. Here is a beginner’s step-by-step guide to running the latest SQL Server in Docker.
What is Clean Buffer in DBCC DROPCLEANBUFFERS? – Interview Question of the Week #215
What is a clean buffer in DBCC DROPCLEANBUFFERS? No one had asked me this in 20 years, so here is the answer in the simplest words I could find.
SQL SERVER – FIX: The specified instance of SQL Server is hosted by a system that is not a Windows Server Failover Cluster(WSFC) Node.
After a cluster rebuild, adding a replica failed: The specified instance is hosted by a system that is not a Windows Server Failover Cluster node. Here is the fix.
Hypothetical Indexes in SQL Server: Find and Drop Them All
Hypothetical indexes are leftovers from the Database Engine Tuning Advisor. They hold a name and statistics but no data. This post lists them, shows they cannot serve a query, and drops them in two steps: a list you read first, and a drop second.
How to Extract Alphanumeric Only From A String? – Interview Question of the Week #214
A reader wanted only the values that mix letters and numbers from a column. Here is how to extract alphanumeric values from a string with simple pattern matching.