Data dictionary

Hi experts.

I am working in 4.7 version

I have a requirement in that i have to create two tables with primary key and foreign key relationship.

ex : Department table- fields: dept_no (p), dept_name.

Employee table :- fields : emp_id(p), emp_name, dept_id (f).

Even though I created the tables with primary and foreign key relationship. while creating table entries in Employee table the entries which are not avail for dept_no in Department table it accepting with out showing error, and record is inserting successfully.

can any body help me.

Thanks in advance.