Composition and inversion of schema mappings
ACM SIGMOD Record, pp. 17-28, 2010.
schema mappingdata exchange
In the recent years, a lot of attention has been paid to the development of solid foundations for the composition and inversion of schema mappings. In this paper, we review the proposals for the semantics of these crucial operators. For each of these proposals, we concentrate on the three following problems: the definition of the semantic...More
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