摘要
文章探讨了基于TNF的历史关系模式的规范化,并给出了基于属性集的历史关系模式(满足TNF)达到2TNF、3TNF的模式分解算法及证明,解决了历史关系模式中存在的数据冗余、TNF异常等问题。
The paper first discusses the normal of the historical relational mode based on TNF,and then gives the al-gorithm and proof decomposing from TNF to2TNF and3TNF based on attribute aggregation for the historical relational mode,that resolves data redundancy and TNF abnormal in the historical relational mode.
出处
《计算机工程与应用》
CSCD
北大核心
2002年第16期143-144,共2页
Computer Engineering and Applications
