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Define an abstraction by which relationships are treated as higher level entities
Ans: Aggregation.
It is an abstraction by which relationships are treated as higher level entities Aggregation. (In ER diagram, aggregation is utilized to denote a relationship as an entity set.)
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A B-tree of order how much children m has maximum ? m has maximum m mchildren in a B tree.
explain exhaustively the problems associated with ER diagrams. include illustrations in your answer
word limit no mentioned
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