To model time-variant data, one must create a new entity in an M:N relationship with the original entity.
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Q13: Entity supertypes and subtypes are organized in
Q14: Overlapping subtypes are subtypes that contain a
Q15: The entity supertype contains common characteristics, and
Q16: Within a specialization hierarchy, a supertype can
Q17: Specialization is the top-down process of identifying
Q19: The completeness constraint can be partial or
Q20: An entity cluster is a "virtual" entity
Q21: Which of the following is a specialization
Q22: One important inheritance characteristic is that all
Q23: In the context of total completeness, in
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