Ideally, an entity identifier is composed of _____ attribute(s) .
A) one
B) two
C) three
D) six
Correct Answer:
Verified
Q17: To implement a small database, a database
Q18: In a 1:M relationship, to avoid the
Q19: Software vendors have adopted the Chen representation
Q20: In implementation terms, an entity is existence-dependent
Q21: A _ attribute can be further subdivided
Q23: If an entity can exist apart from
Q24: The conceptual model can handle _ relationships
Q25: In the entity relationship diagram (ERD), cardinality
Q26: A _ entity has a primary key
Q27: The existence of a(n) _ entity indicates
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