关键词: 数据库组件, 脱机访问, ADO.NET, 并发更新

Abstract:

In database system, the data access technology is developed from connecting model to disconnected model. At present, the disconnected model wins a wide range of applications, such as the development of distributed systems, network services applications, Web applications and so on. In ADO.NET disconnected model, it supports offline access to data and data processing, but it also needs to make more closely control to the offline processing of data updating. This paper first introduces the principle of ADO.NET data offline, as well as three of the existing open concurrent update strategy, and puts forward the new strategy for concurrent updates on this basis.

Key words: database components, offline access, ADO.NET, concurrent update