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Query Store turns SQL Server plan regressions from guesswork into evidence. Learn how to enable it, capture query history, force a known-good plan, and avoid the storage and replica traps.
When a SQL Server query suddenly slows down without code changes, Query Store captures execution plans over time so you can compare them and force a known-good plan back into service.
Learn how to use SQL Server Query Store to capture execution history, compare plans across deployments, and force a stable plan when the optimizer picks a bad one.
microsoftsqlserver