【摘要】 本文对触发器的概念和功能作了详细的介绍，并针对 ＯＲＡＣＬＥ数据库，举例说明如何在信息 管理系统中应用触发器。更多还原

【Abstract】 This article mainly introduce the conception and functions of the trigger which is often used in the large-scale database systems, such as ORACLE.SYBASE and so on. And then an example is taken to explain the application in an information management system.更多还原