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Remote data access and integration of distributed data sources through data schema and query abstraction
Remote data access and integration of distributed data sources through data schema and query abstraction
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机译:通过数据模式和查询抽象进行远程数据访问和分布式数据源的集成
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摘要
The present invention generally is directed to a system, method and article of manufacture for accessing data independent of the particular manner in which the data is physically represented. In one embodiment, a data repository abstraction layer provides a logical view of the underlying data repository that is independent of the particular manner of data representation. In one embodiment, the data repository abstraction layer specifies a location of data in a repository and a method for accessing the data. A query abstraction layer is also provided and is based on the data repository abstraction layer. A runtime component performs translation of an abstract query into a form that can be used against a particular physical data representation.
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