Research And Implementation Of Heterogeneous Database Replication, Data Capture Method

Heterogeneous database and replication of distributed database technology is widely applied. Heterogeneous database replication technology to bring together the two researches has important theoretical and practical significance.Author mainly studies the change capture methods of heterogeneous database replication in this paper. After a careful analysis in several current methods of capture changes, author choice the method which based on the trajectory change table for improving. This improvement on the original method which based on the net change in the operation, through further processing, gets the net change in value to improve efficiency. In view of this paper, the main research direction, this paper has chosen to use middleware technology and XML to achieve concrete improvements the changes capture in the database replication methods. In this paper, the method for achieving the final test and analysis results showed that this is a simple and effective method to reduce response time and reduce network traffic.