| 数据库逻辑设计的图形工具系统 |
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| 引用本文： | 王玉清. 数据库逻辑设计的图形工具系统[J]. 内蒙古大学学报(自然科学版), 1994, 25(1): 108-114 |
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| 作者姓名： | 王玉清 |
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| 摘 要： | 虽然有许多理论上和算法上的结果，但数据库的语义特性并没成功地用到实际生活中的数据库管理系统中．为了解决这一问题，我们建立了一个图形系统．本系统提出了一个用来表示数据库模式和语义特性的图形模型．
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| 关 键 词： | 数据库 逻辑设计 图形工具系统 |
A Graphic Tools System for Logical Database Design |
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| Wang Yuqing. A Graphic Tools System for Logical Database Design[J]. Acta Scientiarum Naturalium Universitatis Neimongol, 1994, 25(1): 108-114 |
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| Authors: | Wang Yuqing |
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| Affiliation: | Department of Computer Science |
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| Abstract: | hough there is a lot of theoretical and algorithmic results,semantic properties of databaseshave not been successfully integrated into real-life database management system. In order to re-solve this problem,we have built a graphic system. In this system graphical model is proposed forthe represention of a database scheme and its semantic properties. |
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| Keywords: | acyclicitiles data dependeney normal forms relation schemes minimal cov-ers closure |
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