摘要
参照完整性的实施是数据库应用系统设计的关键之一 .大多数商用关系数据库都提供两种实施参照完整性的方法 .声明外部关键字或定义触发器 .文章重点分析两种方法的利弊 .
It is very important to implement referential integrity when developing a DBAS (Database Application System). Two means to implement referential integrity are provided by most commercial relational database:declaring foreign keys and defining some triggers. In this articale the advantages and the disadvantages of the two means are discussed.
出处
《南华大学学报(理工版)》
2002年第3期31-33,共3页
Journal of Nanhua University(Science & Engineering)
基金
湖南省教育厅基金资助项目 (4 -0 1-JY -0 1C2 16)