An attribute that determines which subtype is appropriate is called a discriminator.
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Q47: Which of the following is not a
Q48: Which of the following is not a
Q49: Relationships between supertypes and subtypes are called
Q50: ID-dependent entities are a common type of
Q51: Relationships among instances of a single entity
Q53: One example of a database design using
Q54: Entities containing multivalued attributes are often represented
Q55: Subtypes can be exclusive or inclusive.
Q56: There are three types of recursive relationships:
Q57: An exclusive subtype pattern has one supertype
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