Research And Design Of Distributed Database Information System Base On .NET

With the development of Internet, the information transferring and sharing base on Web is a important direction of the companies.With the development of the companies, their databases and information systems is separate from others as lots of filiales. This paper introduces the designing method of the distributed database and the characteristic of this database, expatiates the process of distributed database information system in the modern company. The technology of distributed database makes the database of the company as a logical whole. It achieves data consistency, data synchronous, data transfers safety. This makes the information system develops with the highly rising operation of the company.Firstly, this paper analyses the technology characteristic of .NET Web Service and the advantage using this technology.Base on the fact of the distributing condition of database and information systems in our companys and the characteristic of .NET Web Service, dissertate the feasibility of integration through Web Service.Then the best project is made up.Based on the above, the paper puts forward the architecture for accessing the distributed isomorphic or heterogeneous database based on Web Service technology. Through Web Service the different databases are integrated. Creating Web Service on the point of the servers the visiting through Internet is carried out. Creating Web Service using .NET Remoting the function is increased and the faster transfers is came ture.At last, the paper dissertates the safety of the Web Service through the Internet, and introduces that using the SSL Protocol encrypt the channels.Then the paper introduces the method of advance the efficiency of Web Service.Web Service is a strong and a widely used technology.This paper gives a successful experience on integrating the distributed database information system and developing the program fastly and conveniently. Through the development of Web Service, the application in the business organization will bring lots of reformation.