<database> A collection of properties which should be possessed by data in a relational database.
For example, in a database of family members, if we enter A as a spouse of B, we should also enter B as a spouse of A. Similarly, if we remove one end of the relationship we should also remove the other.
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Nearby terms: REF-ARF « reference « reference counting « referential integrity » referentially transparent » referential transparency » referer