摘要
针对分布式异构数据库在网络环境下变化数据的捕捉与同步更新存在的问题,本文采用基于触发器的捕捉方法实现异构数据库之间同步策略,研究并解决了一对多映射环境下的同步问题。理论分析和实验结果表明,该方法在实际应用中具有重要意义。
Aimed at the problems of capturing the change data and synchronization update for distributed heterogeneous database under the environment of network, a capturing strategy based on trigger was proposed to implement the synchronization between heterogeneous databases. The paper focused on the synchronization problem under the one-to-many mapping. Theoretical analysis and experiments showed that the method and strateav whether in theory or in practical annlication were with imnortant significance
出处
《铁路计算机应用》
2013年第10期37-40,共4页
Railway Computer Application
基金
国家科技计划项目(2009BAG12A06)
关键词
分布式异构数据库
同步更新
变化捕捉
一对多映射
distributed heterogeneous database
synchronization update
change capture
one-to-manymapping
