An attribute or combination of attributes that is a foreign key in one relation of a database must be ____ another relation in the database.
A) the primary key of
B) a secondary key of
C) an alternate key of
D) a non-unique attribute or combination of attributes of
E) None of the above.

Question

Quizplus · Accepted Answer

A foreign key in one relation of a database must be the primary key of another relation in the database in order to establish a proper relationship between the two tables. This ensures referential integrity and helps maintain data consistency.

An Attribute or Combination of Attributes That Is a Foreign