Heterogeneous Database Replication Oriented To Information Integration

With the high-speed development of computer technology, especially Internet, computer managements for data and information apply to many fields. But these data and information are separated and isolated. Integrating these systems is a hard employment. When building these systems, it was few thunk about of exchange with other systems, because data storage and access method has very large differences. We should calculate to use especially systems to deal with data share. In different position of Internet, heterogeneous data source should be accessed by data intergration systems. In general, there are two methods of information integration: material integrating systems and virtual integrating systems. Heterogeneous data integration has become the hotspot among integration research.Heterogeneous database replication is an important method to resolving information integration. This paper looks on heterogeneous database replication as integrating of database replication and heterogeneous database, and analyzes both aspects. This paper separates heterogeneous database replication into several parts: replication object definition, data capture, data distribution, data synchronization and conflict detect and slove, and illuminates the function and implement of every part. And it introduces mainstream replication methods of database enterprises provided, points out their technology point, application range and disadvantages.In material integration field, this paper uses heterogeneous database replication technology to integrating the data from existing systems. Beijing University of Technology integration information platform is the application context. Synthesizing existed heterogeneous database replication methods, this paper optimizes and perfects the replication method called Heterogeneous Database Replication Method Based on"SQL regeneration". It analyzes the keystone, whole design and key technology. As an emphases, it also particular introduces effect factors and design of distribution part. Integrating practical application environment, it presents effective implement method of this replication system, and introduces system structure, basic class and replication part design. This paper also thinks over the design of safe management, failure disposal and system log. Finally, according to...