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THE HISTORICAL RELATIONAL DATA MODEL (HRDM) AND ALGEBRA BASED ON LIFESPANS

Clifford, James et al.
NYU Faculty Digital Archive · Papers
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multidisciplinary
Critical to the design of an historical database model is the representation of the “existence” of objects across the temporal dimension -- for example, the "birth," "death," or "rebirth" of an individual, or the establishment or dis-establishment of a relationship. The notion of the "lifespa
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