Implication Problems for Functional Constraints on Databases Supporting Complex Objects


Virtually all semantic or object-oriented data models assume objects have an identity separate from any of their parts, and allow users to define complex object types in which part values may be any other objects. In [20], a more general form of functional dependency is proposed for such models in which component attributes may correspond to descriptions of… (More)
DOI: 10.1016/S0022-0000(05)80078-9

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