SQL Server uses a cost-based _Query Optimizer_ (QO). For information on QO, see [Query processing architecture guide](/sql/relational-databases/query-processing ...

An update to the cardinality estimator feature in SQL Server 2022 will be one of the biggest changes to the database engine since its inception. Database engines like SQL Server are incredibly complex ...

I'm not really sure this is a bug, I'm more looking to better understand the startup / caching behaviour of the provider and looking for some advice / knowledge to help resolve a timeout issue at ...

The default value of 0 indicates that there is no time limit for a query. This option is useful when you are testing a query, you suspect that a query might contain an endless loop, or the data is ...

Abstract: Tail latency remains a critical performance challenge in database-backed web applications, especially under mixed transactional and analytical workloads. In Ruby on Rails with PostgreSQL, ...