摘要
具有相同结构的数据库合并的关键是对源数据库进行适当的改造,使其数据遵循统一的定义。实现实时合并的基本方法是构建合并的数据库,通过合适的数据采集手段使源数据库中的更新实时地在合并数据库中重现。该过程不能影响以源数据库为核心的联机交易系统的运行。该文通过对证券交易系统的项目研究,给出了多个同质数据库实时合并的解决方案,圆满地以低成本实现了老系统的重复利用。
The key to merging multi -databases with same structures is to redefine data with consistent data -definition by properly modifying databases. A basic way to merging databases in real time is getting update recurring in object database again, which occurred in source databases by properly collecting data system. This progress shouldn＇t disturb the online system that its source database acts as kernel role. The paper suggests a solution of merging muti - databases with same structure and reuses satisfactorily an old system by researching securities transaction system.
出处
《航空计算技术》
2006年第5期114-117,共4页
Aeronautical Computing Technique
关键词
数据库
合并
采集
实时
冲突
触发器
database
merging
collect
real time
conflict
trigger
