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One of the benefits of transforming an entity type into a generalization hierarchy is the avoidance of null values in entities.
Q15: A(n)_ relationship is indicated by a minimum
Q19: The information systems planning process does not
Q19: A Call-Level Interfaceis a language style for
Q23: Like procedures,triggers can be tested directly by
Q37: In Crow's Foot notation,a line perpendicular to
Q40: In Crow's Foot and most other notations,entity
Q54: The process of combining individual views into
Q56: A candidate key is indicated in SQL
Q60: An associative entity type should be used
Q61: Due to the growth of online database