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Laconic Schema Mappings: Computing the Core with SQL Queries

... Balder, TC; Chiticariu, L; Kolaitis, P; Wang-Chiew, T Author:  ... L Kolaitis, P Wang-Chiew, T ... 234.28 KB A schema mapping is a declarative specification of the relationship between ...

Publication - hartung - 04/17/2013 - 12:16 - 0 comments - 1 attachment

Quasi-inverses of schema mappings

... Fagin, R.; Kolaitis, P. G.; Popa, L.; Tan, W. C. Author:  ... the exact semantics of this operator turned out to be a fairly delicate task. Furthermore, this notion is rather restrictive, since ...

Publication - huliganka - 04/17/2013 - 02:49 - 0 comments - 1 attachment

Composing Schema Mappings: Second-Order Dependencies to the Rescue

... Fagin, R.; Kolaitis, P.G.; Popa, L.; Tan, W.C. Author:  ... R Kolaitis, P Popa, L ... 486.39 KB A schema mapping is a specification that describes how data structured under ...

Publication - cat - 04/16/2013 - 19:16 - 0 comments - 1 attachment