SELECT * FROM Customers3 WHERE (3cstfirst, cstlast, cstphone) NOT IN (SELECT cstfirst, cstlast, cstphone FROM Customers1)AND cstfirst, cstlast, cstphone NOT IN SELECT 2cstfirst, cstlast, cstphone FROM Customers2)Fixed the missing (SELECT * FROM Customers3 WHERE (3cstfirst, cstlast, cstphone) NOT IN (SELECT cstfirst, cstlast, cstphone FROM Customers1)AND 3cstfirst, cstlast, cstphone NOT IN (SELECT 2cstfirst, cstlast, cstphone FROM Customers2)Now its:SELECT * FROM Customers3 WHERE (3cstfirst, cstlast, cstphone) NOT IN (SELECT cstfirst, cstlast, cstphone FROM Customers1)AND (3cstfirst, cstlast, cstphone) NOT IN (SELECT 2cstfirst, cstlast, cstphone FROM Customers2)