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

);

最后一行会报错说缺少右括号，请问是怎么回事呢？