南阳师范学院学报2011，Vol.10Issue(9)：51-54,4.
数据依赖的语义分析
Semantic analysis of the data dependency
摘要
Abstract
Data dependencies is a class of data constraints,the semantic interpretation of the data determines the data in the database should follow the constraints.Database design theory involves a fundamental question-to determine the data dependent,in practice,for the determination of data dependencies,professionals often rely on instance data analysis or experience.In order to discuss the determination of data dependencies,we analysed methods that found data dependency through data instances,and pointed out they were not reliable.We put forward a semantic analysis way to determine the data dependency,and semantic analysis about functional dependency,including dependency,multivalued dependency and connection-dependency were presented.The research has theoretical reference value on database system design and management.关键词
数据依赖/数据约束/语义分析/数据库设计理论/数据库系统管理Key words
data dependency/data constraints/semantic analysis/database design theory/database system management分类
信息技术与安全科学引用本文复制引用
程录庆..数据依赖的语义分析[J].南阳师范学院学报,2011,10(9):51-54,4.基金项目
江苏省“青蓝工程”资助项目 （）
南京人口管理干部学院科研基金项目 （）
