Information in the Query StoreĮxecution plans for any specific query in SQL Server typically evolve over time due to a number of different reasons such as statistics changes, schema changes, creation/deletion of indexes, etc. For information on shaping query plans without changing application code, see Query Store hints.įor information on enabling Query Store and keeping it adjusted to your workload, refer to Best Practice with the Query Store.For information on discovering actionable information and tune performance with the Query Store, see Tune performance with the Query Store.For information about operating the Query Store in Azure SQL Database, see Operating the Query Store in Azure SQL Database.You can configure query store using the ALTER DATABASE SET option. It separates data by time windows so you can see database usage patterns and understand when query plan changes happened on the server. Query Store automatically captures a history of queries, plans, and runtime statistics, and retains these for your review. The Query Store simplifies performance troubleshooting by helping you quickly find performance differences caused by query plan changes. The Query Store feature provides you with insight on query plan choice and performance for SQL Server, Azure SQL Database, Azure SQL Managed Instance, and Azure Synapse Analytics. SQL Server 2016 (13.x) and later Azure SQL Database Azure SQL Managed Instance Azure Synapse Analytics (dedicated SQL pool only)
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