Titlebook: Relational and XML Data Exchange; Marcelo Arenas,Pablo Barceló,Filip Murlak Book 2010 Springer Nature Switzerland AG 2010

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Marcelo Arenas,Pablo Barceló,Leonid Libkin,Filip Murlak

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Book 2010ntrating on issues such as relational schema mappings, materializing target instances (including canonical solutions and cores), query answering, and query rewriting. After that, we discuss metadata management, i.e., handling schema mappings themselves. We pay particular attention to operations on s

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Marcelo Arenas,Pablo Barceló,Leonid Libkin,Filip Murlaknstraints correspond to another graph defined on the maximal independent vertex sets of the constraint graph. The row graph of an Armstrong table is defined as a pair of rows form an edge if they contain identical entries in some column. It is shown that there exists a minimal Armstrong table for a

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Catherine Smith,Mark Selkrig,Nicky Dulfer,Matthew Harrison,Thomas Cochrane,Amy McKernan,Vikki Pollard,Jeni Raschechapter to emerge from the high degree of value placed on equality within the schools. It will be argued that despite sounding contradictory, the social valuing of equality and positive individualism within the culture of Quaker schools are complementary. Students’ and teachers’ perceptions of their