링크 :http://rusanu.com/2016/04/01/understanding-sql-server-query-store/ https://www.brentozar.com/archive/2014/11/sql-server-query-store/ https://docs.microsoft.com/en-us/sql/relational-databases/performance/monitoring-performance-by-using-the-query-store?view=sql-server-2017https://docs.microsoft.com/en-us/sql/relational-databases/performance/best-practice-with-the-query-store?view=sql-server-20..
