The role of integrity constraints in database interoperation


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Vermeer, W.W.M. and Apers, P.M.G. (1996) The role of integrity constraints in database interoperation. In: Proceedings of the 22th International Conference on Very Large Data Bases (VLDB 1996), 3-6 Sep 1996, Mumbai (Bombay), India (pp. pp. 425-435).

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Abstract:We present an approach to database interoperation that exploits the semantic information provided by integrity constraints defined on the component databases. We identify two roles of integrity constraints in database interoperation. First, a set of integrity constraints describing valid states of the integrated view can be derived from the constraints defined on the underlying databases. Moreover, local integrity constraints can be used as a semantic check on the validity of the specification of the integrated view. We illustrate our ideas in the context of an instance-based database interoperation paradigm, where objects rather than classes are the unit of integration. We introduce the notions of objectivity and subjectivity as an indication of whether a constraint is valid beyond the context of a specific database, and demonstrate the impact of these notions.
Item Type:Conference or Workshop Item
Additional information:Imported from EWI/DB PMS [db-utwente:inpr:0000003077]
Faculty:
Electrical Engineering, Mathematics and Computer Science (EEMCS)
Link to this item:http://purl.utwente.nl/publications/66465
Official URL:http://www.informatik.uni-trier.de/~ley/db/conf/vldb/VermeerA96.html
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