No???? Yes. Maybe. I don't know. Why is this relevant? <span />
(3 4 3) fhjfhhjwvbjhhhhhhhhhhhhhhhhhhhhs you need 20 characters for these things haha
Answer:
Explanation:
A relational database is designed to enforce the uniqueness of primary keys by allowing only one row with a given primary key value in a table. A foreign key is a column or a set of columns in a table whose values correspond to the values of the primary key in another table.