Approach 1 - From within the target database, the source database is accessed using DB2's mechanisms for federated databases.
方法1-在目标数据库中，使用DB2的联邦数据库机制访问源数据库。
Nowadays there are mainly three methods for data integration, which are Federated Databases, Data Warehouse and Middleware.
目前主要的数据集成技术包括联邦数据库、数据仓库以及中间件三种方式。
The Advanced DBA exam gets into federated databases, partitioning, materialized query tables, and multidimensional clustering tables.
AdvancedDBA考试涉及到联邦数据库、分区、具体化的查询表和多维集群表。
Follow the standard process to define JDBC Provider and DataSource objects to your federated databases. (See Figure 6.) Note the following.
遵循标准过程定义到联邦数据库的JDBCProvider和DataSource对象(参见图6)。
It works well for readily available sites like search engines, online bookstores, and even many library catalogs, but secured e-journal databases need federated search to be installed.
它在像搜索引擎，在线书店甚至图书馆目录等搜索中工作良好，但是那些有保护的电子期刊数据库则需要安装联邦检索。
A graphical interface to view current alerts on the instances and databases and their children objects, including federated objects, such as servers and nicknames.
查看实例和数据库及其子对象(包括联邦对象，如服务器和别名)上的当前警报的图形化界面。
Toolbar searches that use federated search software like MuseGlobal or Ex Libris's Metalib can search groups of databases or even subject subsets of several databases.
使用联邦检索软件工具栏搜索比如MuseGlobal或ExLibris的Metalib可以搜索多组数据库，甚至一些数据库的子库。
Registering each database as a server allows data on each of these remote databases to be accessed from the federated system.
通过将每个数据库注册为一个服务器，可以使这些远程数据库上的数据能够从联邦系统访问到。
For example, a browser search link for "science databases" can pass search keywords to the library's federated search software to return results from a selected group of science databases.
例如，一个浏览器搜索链接“科学数据库”可以把搜索关键词传递到联邦搜索软件并且返回从一组被选的科学数据库中检索到的结果。
The origins of the enterprise data bus can be traced back to the federated database technology - virtualization of access to disparate databases in the enterprise.
企业数据总线的起源可以追溯到数据库联邦技术——虚拟化存取企业中的异种数据库。
In the federated database we defined servers to access the two DB2 databases and nicknames to map the TPC-H tables from those DB2 databases.
在联邦数据库中，我们定义了服务器来访问这两个DB 2数据库和昵称，以从这些DB 2数据库映射TPC - h表。
Federated search system follows the demand of integration of heterogeneous resources, and it allows users to search different databases, catalogs and other collections at the same time.
联邦检索系统源于对跨平台资源整合的需求，它允许用户通过一个统一的平台同时检索多个网络数据库、书目以及其他馆藏信息。
Federated search system follows the demand of integration of heterogeneous resources, and it allows users to search different databases, catalogs and other collections at the same time.
联邦检索系统源于对跨平台资源整合的需求，它允许用户通过一个统一的平台同时检索多个网络数据库、书目以及其他馆藏信息。
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