Subqueries (SQL Server) [!INCLUDE SQL Server Azure SQL Database Synapse Analytics PDW] A subquery is a query that is nested inside a SELECT, INSERT, UPDATE, or DELETE statement, or inside another ...

PROC SQL allows a subquery (contained in parentheses) at any point in an expression where a simple column value or constant can be used. In this case, a subquery must return a single value, that is, ...

[!INCLUDE SQL Server] You can use the results of one query as the input for another. You can use the results of a subquery as a statement that uses the IN ( ) function, the EXISTS operator, or the ...