The Application Study Of Distributed Database In Digital Forest Eco-station

After many years of observation and research, each forest eco-station has already accumulated a great deal of data resources. The center stores share data, and every station usually accesses local database, simultaneously needs to be consistent with the center station for the corresponding data.According to the practical situation of forest eco-station and requirement of constructing the digital forest eco-station system, this thesis puts forward the application of distributed database in digital forest eco-station system, discusses the keystone of data management based the solution, then designs and implements the database synchronization system to keep the data consistent. This solution can improve the harmony and efficiency of the data management work, and make the best use of the data resources.In addition, the thesis adopts the flow of source database capturing change by trigger, Internet using xml as medium to exchange data, destination server analyzing xml document and then updating database. This entire process and realization can also be used for reference by heterogeneous database update in other domain.