Entities have an ___________which is an attribute whose value is associated with one and only one entity instance.
A)attribute
B)agenda
C)initial
D)index
E)identifier

Question

Entities have an ___________which is an attribute whose value is associated with one and only one entity instance. 
A)attribute
B)agenda
C)initial
D)index
E)identifier

Quizplus · Accepted Answer

An identifier is a unique attribute associated with an entity instance. It is used to distinguish one instance of an entity from another. Therefore, an identifier value is associated with one and only one entity instance.

Entities Have an ___________Which Is an Attribute Whose Value Is