CREATE TABLE Employee(

? ? Eno char(4) CONSTRAINT PK_employee PRIMARY KEY,

? ? Name varchar(8),

? ? Sex char(2),

? ? Age int CHECK(Age<= 60 AND Age >= 18),

? ? Dno char(2) CONSTRAINT FK_employee REFERENCES Department(Dno)

? ? ON DELETE CASCADE?

? ? ON UPDATE CASCADE

);

最后一行會報錯說缺少右括號，請問是怎么回事呢？