Research and implementation of change capture in data exchange system
Jing Sun · Jisuanji gongcheng yu sheji · 2010
In order to realize the information exchange between different database systems,a data exchange system based on databases is designed and implemented.An important part of the system is change capture in databases.By comparing the existed change capture methods,a control table method based on tasks is put forward.The information of tasks and types is added which are not included in the traditional control table method,and a component of net changes extracting is taken as assistant,this method is well adopted to data exchange among multi-point isomeric databases.The problems of data transmission caused by triggers in this method are solved at the same time.