When transforming an E-R diagram into normalized relations,the identifier of the entity type becomes:
A)the primary key of the corresponding relation
B)the foreign key in the corresponding relation
C)a nonkey attribute in the corresponding relation
D)a secondary key in the corresponding relation

Question

Quizplus · Accepted Answer

The identifier of the entity type becomes the primary key of the corresponding relation in order to uniquely identify each record in the relation.

When Transforming an E-R Diagram into Normalized Relations,the Identifier of the Entity