| 基于超图的BCNF的判定算法 |
| |
| 引用本文： | 郭景峰,孙绍楠,杨春生.基于超图的BCNF的判定算法[J].燕山大学学报,1995(4). |
| |
| 作者姓名： | 郭景峰 孙绍楠 杨春生 |
| |
| 作者单位： | 燕山大学，齐齐哈尔市财政局，秦皇岛玻璃纤维总厂 |
| |
| 摘 要： | 利用超图来表示关系模式．定义了直接决定因素、推导．讨论了直接决定因素的性质．在此基础上给出了利用超图判定给定的关系模式是否属于ＢＣＮＦ的新算法．
|
| 关 键 词： | 数据库，算法，关系模式，BCNF，有向超图 |
The Algorithm Based on Supergraph for Determining Relation Schema Belongs to BCNF |
| |
| Guo Jingfeng, Sun Shaonan.The Algorithm Based on Supergraph for Determining Relation Schema Belongs to BCNF[J].Journal of Yanshan University,1995(4). |
| |
| Authors: | Guo Jingfeng Sun Shaonan |
| |
| Institution: | Guo Jingfeng; Sun Shaonan(Yanshan University)(Qiqihar Finance Station)Yang Chunsheng(Qinhuangdao Glass Fiber Works) |
| |
| Abstract: | A supergraphic denotation for relation schema is given.Immediatedecision element and derivation are defined.Following this.a new method.basedon supergraph for determining whether a relation schema be longs to BCNF.is given. |
| |
| Keywords: | databases algorithms relation scheme BCNF supergraph |
| 本文献已被 CNKI 等数据库收录！ |
