Answering non-monotonic queries in relational data exchange

    Logical Methods in Computer Science, pp. 143-154, 2010.

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    answers semanticscertain answersquery answering semanticsnon-monotonic querydeductive databaseMore(16+)

    Abstract:

    Relational data exchange deals with translating a relational database instance over some source schema into a relational database instance over some target schema, according to a schema mapping that specifies the relationship between the source data and the target data. Various semantics for answering queries against the target schema exi...More

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