| 基于超图的BCNF的判定算法 |
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| 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, 0(4) |
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| 作者姓名： | 郭景峰 孙绍楠 杨春生 |
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| 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 |
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| 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．
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| 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 |
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| Guo Jingfeng, Sun Shaonan. The Algorithm Based on Supergraph for Determining Relation Schema Belongs to BCNF[J]. Journal of Yanshan University, 1995, 0(4) |
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| Authors: | Guo Jingfeng Sun Shaonan |
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| Affiliation: | Guo Jingfeng; Sun Shaonan(Yanshan University)(Qiqihar Finance Station)Yang Chunsheng(Qinhuangdao Glass Fiber Works) |
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| 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. |
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| Keywords: | databases algorithms relation scheme BCNF supergraph |
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