One area where a lot of development work went into SQL Server 2014 is the area of query optimization where a crucial component got re-written in order to improve query access and predictability. To ...

Part of the SQL Server 2022 blog series. Cardinality estimation (CE) is a process used by the query optimizer to estimate the number of rows returned by a query or sub-part of a query. These estimates ...

With all the cheerleading and the steady drumbeat of new features being released to Azure, it’s easy to lose track of the many cool and valuable new features released in the on-premises version of SQL ...

Abstract: The deep learning-based cardinality estimation is a hot research topic in the field of database query optimization. The SQL query featurization has a direct impact on the quality of ...