摘要
根据数据库中传统数据模型对于可分数据项的不适应, 本文提出了复表数据模型, 讨论了基于此的数据依赖及演算-
In view of the fact that traditional data models are unadaptable to divisible data items of database, a new data model, multi table model is suggested,data dependences and operatings based on this model are discussed preliminarily.
出处
《天津理工学院学报》
1999年第4期49-52,64,共5页
Journal of Tianjin Institute of Technology
关键词
数据结构
泛关系运算
数据库
复表数据模型
data structure
database
data model
mult table
multi table model
pan relational operationa