SQL IF Condition

IF condition is satisfied and the Boolean expression returnsTRUE, it will executed IF Block Sql statement. 
IF condtion is not satisfied and the Boolean expression returns FALSE, it will executed ELSE Block Sql Statement query.

Syntax for IF...ELSEIF ( Boolean_expression ) 
BEGIN
Sql Statement Block
END
ELSE 
BEGIN
Sql Statement Block
END


Example


IF (3<2)   SELECT 'Correct'  ELSE   SELECT 'Wrong'