联邦技术将您带到更高级别的信息集成，它允许DB 2联邦系统充当一个虚拟的数据库，使得对远程对象的查询和对本地表的查询一样简单。
Federation takes you to the next level of information integration, allowing the DB2 federated system to act as a virtual database where remote objects can be queried like local tables.
返回一个包含有关路由和虚拟路径的信息的对象，这些信息是在当前区域中生成url时产生的。
Returns an object that contains information about the route and virtual path that are the result of generating a URL in the current area.
为此，我们建立了电子邮件和虚拟目录的对象模型、设计一个专门的检索语言，并草拟了一个简单的系统原型。
We proposed an object model for email and virtual folder and a specific query language to manipulate them, and at last present a system prototype.
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