Multiple Choice
Which of the following is true of an E-R diagram?
A) Every entity has an identifier.
B) Many-to-many relationships are generally denoted as N:N.
C) A crow's-foot is required to represent a 1:1 relationship.
D) Identifiers are shown in a section at the top of the entity.
Correct Answer:
Verified
Correct Answer:
Verified
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