Design of heterogeneous distributed database query system based on layering thought 基于分层思想的异构分布式数据库查询设计
Querying the dynamic network database query system of this website is very easy , convenient , well timely and has good intercommunication 本网站所开发的农业水土工程信息数据库,数据查询操作简单,具有很好的动态交互性、及时性和便捷性。
Using nlu technology in the database query system and designing nlqid ( natural language query interface of database ) has become one of the most hopeful applied fields in the research on nlu 在数据库查询系统中应用自然语言理解技术,设计数据库自然语言查询接口,已成为自然语言研究中最具有广泛应用前景的方向之一。
More generally , in this paper , we provided a global database query system which based on several database query systems and it was called wan ( wide area network ) database query system , the databases are no more confined to web pages 更一般的,我们提出广域网数据库查询系统,广域网数据库查询系统是架构于各个专业数据库系统之上的查询系统,各个专业数据库系统存放的不再局限于网页数据库。
It provides users a unique interface , accept the query terms , run and return the results like meta - search engine do . in this paper we have developed a wan search database query system for practice use , and this project is supported by national funds 广域网数据库查询系统提供用户关于某一类数据库信息的统一的查询界面,它调用各个独立网站数据库系统对用户输入的查询条件进行实时并发查询,同时合并查询结果返回给用户。
The network systemic platform is set up by the systemic software - windows 2000 server . webpages is made by using the application software : frontpage2000 and dreamweaver4 . the dynamic network database query system is founded by asp , dhtml , sql server 2000 网站的网络服务器平台用widnows2000server搭建,网页用frontpage2000 、 dreamweaver4制作,网络系统的动态数据库查询系统用dhn4l 、 asp 、 visualinterdev 、 sqlserver2000完成,并开发编写了服务器端软件。