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基于函数依赖图的关系模式规范化方法
引用本文:张锐,张文艺,周燕飞.基于函数依赖图的关系模式规范化方法[J].计算机与现代化,2006(3):25-27.
作者姓名:张锐  张文艺  周燕飞
作者单位:1. 台州职业技术学院计算机系,浙江,台州,318000
2. 南京航空航天大学机电学院,江苏,南京,210016
摘    要:在关系型数据库设计过程中。关系模式规范化是关系型数据库逻辑设计的重要步骤。按关系模式的范式定义进行规范化存在不便于操作,分解构成效率低。本文提出了一种以函数依赖图为基础的图示化关系模式规范化方法。实例说明,利用这种方法进行关系模式分解。具有分解过程直观和效率高等特点。

关 键 词:函数依赖图  关系模式  规范化
文章编号:1006-2475(2006)03-0025-03
收稿时间:2005-05-31
修稿时间:2005年5月31日

Application of Function Dependence Diagram to Design of Normal Form in Relation Databases
ZHANG Rui,ZHANG Wen-yi,ZHOU Yan-fei.Application of Function Dependence Diagram to Design of Normal Form in Relation Databases[J].Computer and Modernization,2006(3):25-27.
Authors:ZHANG Rui  ZHANG Wen-yi  ZHOU Yan-fei
Affiliation:1. Department of Computer Engineering, Taizhou Vocational and Technical College, Taizhou 318000, China; 2.College of Mechanical and Electrical Engineering,Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China
Abstract:In the design of the relation databases,the normalization of relation schema is very important to the logical design of relation databases.However,there are some problems in normalization with the definition of pattern in relation schema,for instance,hard to put into practice,low efficiency,etc.This paper brings forward a method of graphical standardization of relation schema based on function dependence diagram.It's proved that intuitionistic process and high efficiency characterize the analysis of relation schema using this method.
Keywords:function dependence diagram  relation schema  normalization
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