Design and Implementation of Middleware to Access Database in Whole Process Tax System
Cundong Tang · Computer Technology and Development · 2011
The different tax's departments adopted different operating systems and database system in whole process tax system.Thus access of heterogeneous distributed database becomes one of the key technologies.Aiming at heterogneity of database in whole process tax system,this advantages and disadvantages of access heterogeneous distributed database is analyzed.This article introduces the design idea for using ADO.NET-based database middleware to access heterogeneous distributed database.And system structure and model of middleware to access database is introduced.The way to realize database middleware based on the ADO.NET is discussed,middle-ware is tested.Test results show the feasibility and validity of the middleware of heterogeneous distributed database access.The middleware has strong independence and portability and reusability.It has a good promotion value.