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Enable SQL Server Query Store with a production-ready configuration, learn to spot plan regressions using catalog views, force plans safely, and avoid the common mistakes that silently disable capture or cause forced-plan regressions.
Learn how to enable Query Store, identify a regressed query, force a known‑good plan, and verify the fix while understanding the overhead trade‑off.
Parameter sniffing makes Azure SQL Database queries unstable across parameter values. Using Query Store to observe plan variance and plan forcing to lock a stable plan can provide deterministic performance without schema or code changes.
microsoftsqlserver
azuresqldatabase