Thank yu for your time and care, a reall master.
as for the keys, I will do a primary key for the OrderDetails table.
I understand that foreign key means that I will link this field e.g. OrderID field of Orderdetails to its field in Orders table.
Annd that on the orderDetails table only one key will appear (visually) which is the primary key but the foreign key will not represented by the key sympol, Am I right.
thanks