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计算机工程 ›› 2006, Vol. 32 ›› Issue (2): 82-84.

• 软件技术与数据库 • 上一篇    下一篇

主动实时数据库系统触发器模型的设计与实现

张宏斌 1,唐华俊1,辛晓平1,姜丽华2   

  1. 1. 中国农科院农业自然资源和农业区划所,北京 100081;2. 中国农科院农业信息研究所,北京 100081
  • 出版日期:2006-01-20 发布日期:2006-01-20

Design and Implementation of Trigger Model in Active Real-time Database System

ZHANG Hongbin1, TANG Huajun1, XIN Xiaoping1, JIANG Lihua2   

  1. 1. Institute of Natural Resources and Regional Planning, Chinese Academy of Agricultural Sciences, Beijing 100081;2. Institute of Agricultural Information, Chinese Academy of Agricultural Sciences, Beijing 100081
  • Online:2006-01-20 Published:2006-01-20

摘要: 提出了一种支持现代应用的主动实时数据库系统的触发器机制。介绍了触发器的概念、执行模型以及触发器条件及其评价,并且对于复杂条件的评价提出了一种基于状态自动机的路径选优法。

关键词: 触发器;实时数据库;主动机制

Abstract: This paper suggests a trigger mechanism supporting advanced application in active real-time database system. It introduces the conception, executing mode and condition of the trigger mechanism, besides it presents a method of selecting excellent path based on state automation to handle the composite conditions.

Key words: Trigger; Real-time database; Active mechanism