Topic: Primary and Foreign keys
Hi friends and Experts of MVD,
Today I want to know about subject mentioned above in Topic subject. Can any one tell me how these keys act?
For example there is two table A and B. If A table has foreign key of B then what is action of table A and table .Same way if table B has foreign key of A then what will be act of B on A. Third condition is where both tables have foreign keys of each other then what will be the behaviour of the tables.
Thanks a lot.