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Q6: The ERM forms the basis of a(n)_.
Q6: A verb associating two nouns in a
Q16: A manager and a programmer usually have
Q24: To model time-variant data,you must create a
Q30: To avoid nulls,some designers use special codes,known
Q34: _ are underlined in an ER diagram.
Q40: UNION,INTERSECT,and MINUS work properly only if relations
Q54: The _ pseudo-column is used to select
Q76: Which of the following types of therapy
Q278: What psychological phenomenon is exhibited when patients