Worker Department Location Manager Department Spiffy Computer Service Div San Jose Spiffy Computer Service Div Hint: Use self join concept to retrieve respective department names The structure of the Employee, Department tables are as below: Employee not null empno firstname midinit lastname char(6) varchar(12) not null char(1) varchar(15) not null char(3) not null Department workdept primary key foreign key check phoneno >= '0000000000' and phoneno