SQL Server Query Store is a monitoring feature available to all editions of SQL Server 2016 and later; it significantly simplifies and expedites query tuning and troubleshooting. The Query Store database provides aggregated metrics regarding query executions, query plans, and wait statistics to enable visibility to performance trends and usage patterns.
"Query Store is a fantastic flight data recorder for your execution plans. It will help you troubleshoot parameter sniffing issues, connection settings issues, plan regressions, bad stats, and much more."
- Brent Ozar, Author and Microsoft Certified Master in SQL Server
Query Store includes a graphical interface of charts and user controls and its schema lends itself to custom T-SQL queries such as "10 longest running queries in the past hour". While these...
