In crow's foot style E-R diagrams,a circle across the relationship line near an entity indicates ________.
A) a minimum cardinality of zero
B) a minimum cardinality of one
C) a maximum cardinality of one
D) a maximum cardinality of many
E) Both B and C

Question

Quizplus · Accepted Answer

A circle across the relationship line near an entity in crow's foot notation indicates a minimum cardinality of zero, meaning that an entity is not required to participate in the relationship.

In Crow's Foot Style E-R Diagrams,a Circle Across the Relationship