| 含空值关系数据库中的多值逻辑的研究 |
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| 引用本文： | 蒋天发. 含空值关系数据库中的多值逻辑的研究[J]. 武汉科技学院学报, 2000, 0(4) |
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| 作者姓名： | 蒋天发 |
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| 作者单位： | 中南民族学院 |
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| 基金项目： | 国家民委科研基金!(编号 982 0 0 2 ),中南民族学院自然科研基金!(编号 980 10 8)资助项目 |
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| 摘 要： | 论述了含空值关系数据库中的多值逻辑推导及演化过程 ,并且定义了基于三值逻辑运算的处理规则以及多值逻辑的应用
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| 关 键 词： | 关系数据库 空值 3VL 4VL 7VL |
ON Null Values and Multi- Lgic in the Relational Databases |
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| Jiang Tianfa. ON Null Values and Multi- Lgic in the Relational Databases[J]. Journal of Wuhan Institute of Science and Technology, 2000, 0(4) |
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| Authors: | Jiang Tianfa |
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| Affiliation: | Jiang Tianfa |
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| Abstract: | This article has discusseel the multi-logical inference in the relational database included in the null voclues. Furthermore, a new kind of inforence rules based on three-valued logical inference are bulite up, and the application of multi-valued logic is also introduced in it. |
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| Keywords: | relational databases null values 3VL 4VL 7VL |
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