Subtype entities contain only attributes unique to the subtypes.
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Q45: The supremetype entity contains the attributes that
Q49: Relationships between supertypes and subtypes are called
Q52: An attribute that determines which subtype is
Q52: An attribute that determines which subtype is
Q55: Subtypes can be exclusive or inclusive.
Q56: There are three types of recursive relationships:
Q57: An exclusive subtype pattern has one supertype
Q57: Entities containing optional sets of attributes are
Q58: Which of the following is not a
Q60: One example of a database design using
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