分布式数据库

Because of the rapid development of Internet and the technology of database, distributed database is widely used.

随着互联网的迅速发展及数据传输速率的提高，分布式数据库得以广泛的推广和应用，使人们可以借助互联网实现远程办公、信息查询、时实监控。

Has control which the data independence,the centralism and the self-restraint unify machine-made,suitable increase data excess in,business management characteristics and so on distributivity.

分布式数据库是物理上分散在计算机网络各结点上，而逻辑上属于同一个系统的数据集合，其具有数据独立性、集中与自制相结合的控制机制、事务管理的分布性等特点。

System selects and uses the PowerBuilder software , PowerBuilder is one kind of the high-effect client server/ pattern and distributed data base application fore-end exploitation implement.

本系统选用PowerBuilder软件，PowerBuilder是一种高效的客户/服务器模式以及分布式数据库应用程序的前端开发工具。

To introduce the basic principle of the technology of the distributed databasd,and applied it to the educational management system.To explain the structure of this system, the data distribution and intercurrent control of transaction.

介绍了分布式数据库技术的基本原理，并将其应用于高校教务管理系统中，阐述了该系统的结构，数据分布和事务的并发控制。

Based on the above, the paper puts forward the architecture for accessing the distributed isomorphic or heterogeneous database based on Web Service technology.

通过集团公司的案例实践，本文提出了利用Web服务整合同构或异构分布式数据库的原型系统。

Again, I spend most of my wo rds here on tools with a centralized server.

分布式数据库结构，我花了很多的文字在采用集中式服务器的工具上

The number, type, and the statistical distribution of accesses made by each application to each required data object.

分布式数据库设计中的一个主要原则是使数据和应用实现最大程度的本地化。

NET Web Service, dissertate the feasibility of integration through Web Service.Then the best project is made up.

NET平台整合分布式数据库信息系统的可行性，并结合公司需求做出最优整合方案。

Querying in distributed database system is more complicated than in centralized database system.

是分布式数据库系统的主要问题之一。

This paper mainly introduced distributed database querying processing ways, and introduced the query of SQL at the end of this paper.

本文主要研究了基于分布式数据库的查询优化处理算法，并在文章结尾谈到了关于SQL语句的优化。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。