Abstract
Schema validation and view updating are database engineering problems which seem to differ significantly. Hence, for solving them, significantly different approaches are taken, usually. However, one of the contributions of this paper is: We show that any sound method for view updating can effectively be used also for validating schema specifications. We consider typical schema validation tasks such as checking schema satisfiability, liveliness of a predicate, reachability of partially specified states and redundancy of integrity constraint specifications, and we show how, with any sound method for view updating, these tasks can be tackled in a uniform way. For illustrating our point, we shortly recapitulate a concrete method for view updating and apply it to tackle these tasks. We emphasize that our general approach is independent of any particular method for view updating. Other contributions consists in refined concepts of schema satisfiability and integrity redundance. Both can be expressed in related terms of liveliness and reachability, and yield results that compare advantageously to what has been proposed so far, in the literature
Supported by the DGICYT, ref. SAB94-0331
Supported by the PRONTIC program project TIC94-0512
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Hendrik, D., Ernest, T., Toni, U. (1996). How to tackle schema validation by view updating. In: Apers, P., Bouzeghoub, M., Gardarin, G. (eds) Advances in Database Technology — EDBT '96. EDBT 1996. Lecture Notes in Computer Science, vol 1057. Springer, Berlin, Heidelberg. https://doi.org/10.1007/BFb0014177
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DOI: https://doi.org/10.1007/BFb0014177
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