NEW HERE? USE "AFORUM20" TO GET GET 20 % OFF CLAIM OFFER

UK: +44 748 007-0908 USA: +1 917 810-5386
My Orders
Register
Order Now

Foreign key constraints be enforced by the DBMS

How can the key and foreign key constraints be enforced by the DBMS? Is the enforcement technique you suggest difficult to implement? Can the constraint checks be executed in an efficient manner when updates are applied to the database?