Titlebook: Constraint Databases; Gabriel Kuper,Leonid Libkin,Jan Paredaens Book 2000 Springer-Verlag Berlin Heidelberg 2000 Datalog.GIS.Logik.SQL.alg

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Parkinson’s Disease in Intensive Care Unithem are of primary interest. Such differences in scope and emphasis are crucial, as they affect the data model, the query language, and performance. This chapter presents a survey of results concerning topological queries in spatial databases. Motivated primarily by GIS, we focus on semi-algebraic regions in the two-dimensional plane.