摘要
层次模型是 DBMS所支持的三大数据模型之一 .本文论述了如何利用关系模型表达层次模型的一种方法 ,具体给出了插入和修改的算法 .此算法简便、可行、有效 ,不需对数据库进行规范化处理 .此算法已在 Delphi 3 .0中实现 ,效果显著 ,具有友好、快捷的操作界面 .
Hierarchical model is one of the three models in the DBMS. This paper describes how to make use of relation model database to express the hierarchical model and two special algorithms for inserting and modifying in database are also presented. The algorithms have many advantages, such as, simple, feasible, effective, which are been used in the information system designed by Delphi 3.0.
出处
《华中师范大学学报（自然科学版）》
CAS
CSCD
北大核心
2001年第2期150-153,共4页
Journal of Central China Normal University：Natural Sciences
