联邦数据库

客户端用于访问联邦数据库的用户ID和密码映射为远程用户ID和密码。

The client 's user ID and password for accessing the federated database is mapped to a remote user ID and password .

关于列定义、索引以及昵称统计信息的信息存储在DB2联邦数据库系统编目中。

Information about the column definitions , index , and statistics for a nickname is stored in the DB2 federated database system catalogs .

在子数据源和综合数据库之间利用联邦数据库技术实现DB2到异构数据源的透明访问，支持从db2到异构数据源的读，写操作。

We can commit transparent access of heterogeneous databases with federal database technology on DB2 II .

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。

The Advanced DBA exam gets into federated databases , partitioning , materialized query tables , and multidimensional clustering tables .

与本地表一样，上面描述的所有数据注册步骤都将信息存储在DB2联邦数据库系统编目中。

Just as in local tables , all the data registration steps described above store the information in the DB2 federated database system catalogs .

但是，如果不使用用户映射，应确保在连接到联邦数据库时隐式地指定用户id和密码。

However , if you do not use a user mapping , ensure that you explicitly specify the user ID and password when you connect to the federated database .

来自新建的联邦数据库“款项公开”（OpenPayments）的一份分析报告显示，近期从Insys公司拿钱最多的前20名医生当中，有5名面临着法律或者行业纪律的制裁，其中包括前述所说曾滥开止疼药的3个人。

An analysis of the new federal Open Payments database shows that five of the 20 physicians who received the most money from Insys recently faced legal or disciplinary action , including three who were said to have inappropriately prescribed painkillers .

最后第七章对本文使用联邦数据库技术在DBMS一级实现数据共享和互操作的特点进行总结，并对此项技术进一步的研究提出自己的见解。

The last chapter is a conclusion about using of database federation to solve data federation on a DBMS level , and give a further prospect on this technology .

如果用于连接到联邦数据库的用户ID和密码与用于访问远程数据源的用户ID和密码相同，那么不需要创建用户映射。

If the user ID and password you use to connect to the federated database are the same as those you use to access the remote data source , you do not need to create a user mapping .

一种基于B/S计算模型的Internet-FDBS联邦数据库系统的集成方法

An Integrated Method of Internet-FDBS based on B / S Calculate-Model

分析数据仓库、联邦数据库和中间件数据集成方案的优缺点，最后参考中间件体系结构的数据集成方案实时性和可扩展性的优势，确定在基础SOA中设计虚拟视图数据集成层（VVDIL）。

By analyzing advantages and weaknesses of Data Warehouse , the federal database and data integration middleware program , finally , we determines creating a virtual view data integration layer ( VVDIL ) in SOA reference to middleware architecture with real-time data integration and scalability advantages .

本文旨在介绍一种基于B/S计算模型的Internet-FDBS联邦数据库系统的集成方法，对Internet-FDBS的模式结构和基于B/S计算模型的Internet-FDBS联邦数据库系统及Internet-FDBS的联邦查询处理作了深入的阐述。

This paper introduces an integrated method of Internet-FDBS based on B / S calculate-model . It discusses the model-structure of Internet-FDBS ? Internet-FDBS based on B / S calculate-model and the federated-query procedure in detail .

联邦数据库系统嵌套查询的处理方法

A Method of Processing Nested Query in a Federated Database System

基于联邦数据库技术的空间数据与属性数据互操作

The Interoperation between Spatial Data and Attribute Data Using Database Federation

一种解决联邦数据库系统查询处理的模式转换方法

A Mapping Approach of Schema in a Federated Database System

最后，探讨了微型数据库系统、未来的联邦数据库系统、未来数据库系统的体系结构、程序逻辑和数据统一管理技术、结构化和半结构化数据的集成技术等几个主要数据库研究新方向。

Finally , several new research directions of database systems are investigated .

对应用程序开发支持联邦数据库和昵称。

Federated database and nicknames are supported for application development .

联邦数据库查询处理的规则化及其性能分析

Rule based FDBs query processing and performance analysis

智能化设计关系或联邦数据库

Intelligently design a relational or federated database

昵称是在联邦数据库内创建的，用于标识数据源表和视图。

Nicknames are created in the federated database to identify data source tables and views .

以及联邦数据库系统下各子数据库系统地高度自治等。

And the autonomy of each sub-systems .

联邦数据库系统允许用户访问多个自治数据库管理系统中的数据。

A federated database allows users access to data located in multiple autonomous database management systems .

当前基于联邦数据库方向的多媒体联邦数据库系统已经取得较大发展。

Recent research in federated database systems has advanced in the direction of federations of multimedia databases .

又如对数据分散及不同类型数据库推动了分布式数据库、联邦数据库及数据库集成技术的发展；

Get the fast development ; and distribute type database , federal database and databases gather technical ;

通常，如果联邦数据库不是分区的，受信任模式可以提供更好的性能。

In general , the trusted mode provides better performance if the federated database is not partitioned .

联邦数据库系统具有分布性、异构性、自治性、透明性的特点。

Distribution , heterogeneity , autonomy and transparency are the most important characteristics of Federated Database System .

目前比较成熟的数据集成方法主要有联邦数据库、数据仓库、中间件三种方法。

There are usually three data integration methods , which include federal database , data warehouse and middleware .

更新关系数据源中的数据，就好像数据存储在联邦数据库中一样。

Update data in relational data sources , as if the data is stored in the federated database .

联邦数据库依靠服务器属性来确保各数据源的功能得到了合理利用。

The federated database relies on server attributes to ensure that the capabilities of each data source are properly exploited .

本文提出了一些扩充基本域的建议，并给出了其在异构、联邦数据库系统中模式集成时的应用。

This paper proposes some methods to expand domain , and finds its applications in schema integration of heterogeneous , federated database systems .