基于.NET的异构数据访问组件设计与实现

Design and Implementation of Heterogeneous Data Access Component Based on.NET

针对需要同时访问多种数据库和其它数据源的情况,设计了一款基于.NET的异构数据访问组件,能够在系统运行时态访问实际需要的数据库,并为操作不同类型数据库提供了统一接口.该组件也可以集成到数据访问层,构建系统时能极大地提高开发效率,减少开发和维护成本.

The current information system has complex structure, large scale and need to access more than one data type. Faced on the situation of simultaneously accessing to multiple type databases and other data sources, a kind of heterogeneous data access is designed based on. NET which can dynamically access to actual need database when the system is running, and presents the uniformed interface for different types of database manipulation. The design thoughts of component are introduced, detailed description realization methods and functions and the relative configuration specification for use and the situation that the component application to actual system are given, and advices and ideas for the component improvement are given as well. The component can also be integrated into the data access layer, and greatly improve the development efficiency, reduce the cost of development and maintenance when needs to construct information system.