Conditional

Function Name Description
BOOL_AND Computes the boolean AND of two boolean expressions. Returns TRUE if both epxressions evaluate to TRUE. Returns FALSE if one or both expression(s) evaluate(s) to FALSE.
BOOL_OR Computes the boolean OR of two boolean expressions. Returns TRUE if one or both epxression(s) evaluate(s) to TRUE. Returns FALSE if both expressions evaluate to FALSE.
ISNULL Determines if an expression is NULL. Returns true if is NULL, and false otherwise. Alias for the operator IS NULL.