Query Store and intelligent Query Processing - SQL Server 2022

SQL Server 2022 includes several features in the area of Query Store and intelligent query processing, designed to improve performance, scalability, and reliability of database systems. Some of the key features are -

Query Store on secondary replicas: SQL Server 2022 includes the ability to collect Query Store data on secondary replicas, which can help to improve performance and troubleshooting in a high availability environment.

Query Store hints: The Query Store hints feature in SQL Server 2022 provides a way to manually select a query plan for a specific query, helping to improve performance and troubleshoot issues.

Memory grant feedback: SQL Server 2022 includes memory grant feedback, which provides information on the memory usage of queries and can be used to optimize performance.

Parameter sensitive plan optimization: This feature in SQL Server 2022 provides the ability to optimize query plans based on the specific parameter values used in a query, resulting in improved performance and reduced resource usage.

Degree of parallelism (DOP) feedback: SQL Server 2022 includes DOP feedback, which provides information on the parallelism used by queries and can be used to optimize performance.

Cardinality estimation feedback: This feature in SQL Server 2022 provides feedback on the accuracy of query cardinality estimates, which can be used to improve the performance of queries.

Optimized plan forcing: SQL Server 2022 includes optimized plan forcing, which provides the ability to force a specific query plan, helping to improve performance and troubleshoot issues.

In conclusion, these Query Store and intelligent query processing features in SQL Server 2022 can help to improve performance, scalability, and reliability, while making it easier to troubleshoot issues and optimize performance.

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