触发器在一种中介型电子商务系统开发中的应用

APPLICATION OF DATABASE TRIGGERS IN THE DEVELOPMENT OF HUAXIAYINONG ELECTRONIC COMMERCE SYSTEM

触发器是DBMS中的重要技术之一。本文通过实例介绍了触发器在华夏益农电子商务系统的开发中所起到的作用利用触发器实现复杂完整性约束;维护历史日志,并进行综合级的统计分析;安全审计;实现消息传递。

A trigger is one of the key technology of DBMS.With the actual instances,this paper introduces some methods of application in Huaxiayinong Electronic Commerce System with triggers:implementation of complex integrity constraints;history data maintenance and generalization statistics and analysis;security audit;message communication.