“data federation tool”的概念、定义、翻译、参考文献-科学参考

单词	data federation tool
释义	data federation tool Encyclopedia 理学数据库中间件释 data federation tool数据联邦工具通过包装器隐藏每个异构数据源自身特性，为异构数据源提供抽象的数据接口，可看作是一个虚拟的联邦数据库，或具有数据库管理系统（DBMS）功能的中间件软件，应用包装器访问异构数据源。
随便看	field mode field model field model test field nebula field non-available precipitation field notebook field nursing equipment field observation and check of remote sensing geology field observation of frozen soil depth field observation record field observatory field of algebraic functions field of characteristic p field of class two field of coefficients field of complex numbers field of constants field of curvature field of curves field of definition field of definition for variety field of directions field of events field of extremals field of finite type

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