Microsoft SQL Server Query Store

The Query Store is a new feature in Microsoft SQL Server 2016 that offers performance insights for your database workload. It automatically captures a history of queries, plans, and runtime statistics, and retains this data for your review. You can use the Query Store to find out which queries are consuming the most resources, and then take action to improve performance.

To use the Query Store, connect to your database using SQL Server Management Studio. In the Object Explorer pane, expand the server name, expand databases, right-click on a database, and select Properties. In the Database Properties dialog box, select the Query Store page.

On the Query Store page, you can enable or disable the Query Store for the selected database. When the Query Store is enabled, you can also specify how long to retain data and how frequently to capture data. By default, data is retained for 7 days and captured every 15 minutes.

Once the Query Store is enabled, you can start monitoring query performance. To view query data, expand the server name in Object Explorer, expand databases, expand a database, expand Query Store, and then select one of the following views:

• All queries: Displays all queries that have been captured by the Query Store
• Recent queries: Displays queries that have been captured within a specified time period
• Top queries: Displays queries that have consumed the most resources
• Regressed queries: Displays queries where performance has worsened
• Query plan changes: Displays times when query plans have changed
• Runtime statistics: Displays query runtime statistics
• Wait statistics: Displays wait statistics for query execution
• Force Plans: Lets you force a specific query plan for a selected query

The Query Store is a valuable tool for troubleshooting performance issues in Microsoft SQL Server 2016. By default, it captures information about all queries that run on your database. You can use this data to identify which queries are consuming the most resources, and then take action to improve performance.

The Microsoft SQL Server Query Store is a tool that can be used to track and optimize query performance. To use the Query Store, first enable it at the database level. Then, set up a frequency at which to capture query data. This data can be used to identify slow-running queries and optimize them for better performance. The Query Store can also be used to track query execution times over time, which can be helpful for identifying trends in query performance. Finally, the Query Store can be used to force a particular execution plan for a query, which can be useful for troubleshooting performance issues. By using the Microsoft SQL Server Query Store, you can optimize query performance and troubleshoot any issues that may arise.