| 连接不失真性的判断 |
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| 引用本文： | 栗欣.连接不失真性的判断[J].计算机研究与发展,1994,31(10):23-25. |
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| 作者姓名： | 栗欣 |
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| 作者单位： | 中国矿业大学自动化系 |
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| 摘 要： | 本文提出判定接不失真性的又一个必要条件，发现了连接不失真的充要条件。文中有关理论补充并推广了文献（１）中的有关理论。
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| 关 键 词： | 连续不失真性 关系模式分解 数据库 |
Determining Lossless Join Decomposition |
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| Li Xin.Determining Lossless Join Decomposition[J].Journal of Computer Research and Development,1994,31(10):23-25. |
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| Authors: | Li Xin |
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| Abstract: | With a new necessary condition for lossless join decomposition suggested, its sufficientand necessary conditions have been found. Some of the conclusions drawn can serve as a supplementto what is given lu1]. |
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| Keywords: | Lossless join decomposition relation schema candidate keys |
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