An attribute in a table that serves as a unique identifier in another table and is used to link the two tables is a
A)foreign key.
B)primary key.
C)relational key.
D)linkage key.

Question

Quizplus · Accepted Answer

A foreign key is an attribute in one table that refers to the primary key of another table, creating a link between the two tables. The primary key is the unique identifier for the table in which it is defined. Relational key and linkage key are not standard terminologies used in database management systems.

An Attribute in a Table That Serves as a Unique