Mssqllocaldb [exclusive] -

“That’s not a test database,” she whispered. “That’s a scalpel.”

Three years later, Lena was a principal engineer. A new hire asked during onboarding: “Why do we use LocalDB for testing instead of a containerized SQL Server?” mssqllocaldb

The Ghost in the Pipeline

“You can attach a debugger to the same process that’s running the database engine. When a test fails, you can pause both your app code and the SQL execution at the exact same clock cycle. Try doing that with a container.” “That’s not a test database,” she whispered