In SQL Server 2017, automatic plan correction was added, which allows for the database engine to automatically use the "last known good plan" for a query that has suddenly regressed in performance.

If you're seeking to optimize your SQL queries and make the most of your database, this fundamental guide is an excellent resource. You'll learn the essential techniques to enhance database ...

Query Optimiser: A software component that determines the most efficient strategy for executing a database query. Query Execution Plan (QEP): A detailed, structured representation of the ...

Originally, the SuperSQL query is directly converted into a single SQL query. In some query cases, this procedure returns a large intermediate table, which typically requires a long execution time ...

Microsoft has just added support for query hints to Azure SQL Database, giving database administrators a powerful tool to manage the performance of ISV application code. Here's how it works.