摘要
如何屏蔽分布在不同站点上的异构数据库之间的差异,是实现多个数据库互访要解决的首要问题。本文提出了语义值的概念和用语义值来消除各异构数据库的语义差别,从而实现多个数据库互访的一种方法。
How to shield the difference among the distributed heterogeneous database is the primary problem to be solved to implement the mutual visiting among the multiple databases. This paper presents a concept of semantic value and a method to implement the mutual visiting among multiple database using the semantic value to eliminate the semantic difference.
出处
《计算机与数字工程》
1998年第4期19-23,共5页
Computer & Digital Engineering
关键词
异构数据库
互操作性
语义表示
语义转换
distributed heterogeneous database, interoperability, semantic value, semantic representation, semantic transition
