Geo-Relational Algebra: A Model and Query Language for Geometric Database Systems

作者: Ralf Hartmut Güting

DOI: 10.1007/3-540-19074-0_70

关键词: Query optimizationDatabaseViewComputer scienceQuery languageRDF query languageQuery by ExampleDatabase theoryProgramming languageDatabase designData manipulation language

摘要: The user's conceptual model of a database system for geometric data should be simple and precise: easy to learn understand, with clearly defined semantics, expressive: allow express ease all desired query manipulation tasks, efficiently implementable.

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