Transact-SQL Reference
AND
Combines two Boolean expressions and returns TRUE when both expressions are TRUE. When more than one logical operator is used in a statement, AND operators are evaluated first. You can change the order of evaluation by using parentheses.
Syntax
boolean_expression AND boolean_expression
Arguments
boolean_expression
Is any valid Microsoft® SQL Server™ expression that returns a Boolean value: TRUE, FALSE, or UNKNOWN.
Result Types
Boolean
Result Value
Returns TRUE when both expressions are TRUE.
Remarks
This chart outlines the outcomes when you compare TRUE and FALSE values using the AND operator.
TRUE | FALSE | UNKNOWN | |
---|---|---|---|
TRUE | TRUE | FALSE | UNKNOWN |
FALSE | FALSE | FALSE | FALSE |
UNKNOWN | UNKNOWN | FALSE | UNKNOWN |
See Also
Operators (Logical Operators)