【摘要】 随着网络技术的发展,基于数据库的网络教学系统得到了广泛的发展。然而这些系统之间无法实现数据共享和信息交换,形成了一个个信息孤岛。为了整合这些系统,实现数据的共享,分布式的数据库设计成为了必然。然而由于其设计、开发、部署等非常复杂困难,在一定程度上制约了它的发展。通过对.NET的Web Services.、NET Remoting、ADO.NET等技术的研究与分析,提出了基于.NET技术的分布式数据库查询方法,实现了各个网络教学系统之间的数据共享。更多还原

【Abstract】 With the development of network technologies,the network learning systems based on the database are increasing gradually.But these systems cannot share the data and exchange the information with each other,and form the islands of the information.In order to integrate all kinds of system into integrity and enable them to share information,the distributed database will be applied.But because it is very difficult to design,develop and deploy,the distributed database cannot be applied widely.Through analyzing and studying the.NET technology including web services,.NET Remoting and ADO.NET,one method is put forward to get the data from the distributed database and implement the data sharing between each network learning system.更多还原