This should be a quickie.<BR><BR>I need to write a query that has to run in a tight loop in my application, so I want to make it efficient.<BR><BR>Is there any significant difference in efficiency ...

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 ...

OpenSearch SQL uses OpenSearch nested query to query the nested field. In OpenSearch domain, the nested query can filter the nested field based the query logic which is correspond to the EXISTS in ...

Dynamic SQL lets you create a query string based off of user input. SQL Server allows you to create dynamic SQL statements. The statements use a SQL string varchar data type, then you execute the ...

The semantics of the exists() function, used to implement EXISTS { } expressions, seems to contain a bug, which makes implementing the function hard. I would like to first outline what I perceive as a ...