A one-to-many unary relationship allows an occurrence of the entity type on the "one side" of the relationship to be associated with _____.
A) a single occurrence of the same entity type
B) multiple occurrences of the same entity type
C) a single occurrence of the different entity type on the "many side" of the relationship
D) multiple occurrences of the different entity type on the "many side" of the relationship
E) multiple occurrences of the different entity type on the "one side" of the relationship

Question

Quizplus · Accepted Answer

A one-to-many unary relationship allows an occurrence of the entity type on the "one side" to be associated with multiple occurrences of the same entity type on the "many side." This is because "unary" indicates the relationship is within the same entity type.

A One-To-Many Unary Relationship Allows an Occurrence of the Entity