Which of the following properties should be satisfied when the identifier of the entity type becomes the primary key of the corresponding relation?
A)The value of the key must uniquely identify every row in the relation.
B)The key should serve as a foreign key in at least two other relations.
C)The key must be a composite of a primary key and a secondary key.
D)The key should be an intelligent key.

Question

Quizplus · Accepted Answer

When the identifier of the entity type becomes the primary key of the corresponding relation, it should satisfy the property that the value of the key must uniquely identify every row in the relation. This is because the primary key is used to uniquely identify each record in the relation and ensure data integrity. The other options (B, C, and D) are not necessarily requirements for the primary key to be effective.

Which of the Following Properties Should Be Satisfied When the Identifier