| 标准SQL语言中Select语句模糊扩展 |
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| 引用本文： | 张春生,白玉峰,李艳.标准SQL语言中Select语句模糊扩展[J].微计算机信息,2006,22(33):268-270. |
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| 作者姓名： | 张春生 白玉峰 李艳 |
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| 作者单位： | 028043,内蒙古,通辽,内蒙古民族大学数学与计算机科学学院 |
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| 基金项目： | 内蒙古高等学校科研项目 |
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| 摘 要： | 在模糊理论基础上,建立了基于通用模糊类型的模糊知识表,定义了标准SQL语言中select语句的模糊条件格式,并构造了模糊select语句的解释函数,用户如同写普通精确select语句一样书写模糊语句,系统通过解释函数自动识别并执行,在关系数据库基础上实现了SQL语言中select语句的模糊扩展.
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| 关 键 词： | SQL语言 Select语句 模糊扩展 |
| 文章编号： | 1008-0570(2006)11-3-0268-03 |
| 修稿时间： | 2006年4月28日 |
Select sentence fuzzy expansion in standard SQL language |
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| ZHANG CHUNSHENG,BAI YUFENG,LI YAN.Select sentence fuzzy expansion in standard SQL language[J].Control & Automation,2006,22(33):268-270. |
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| Authors: | ZHANG CHUNSHENG BAI YUFENG LI YAN |
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| Abstract: | In the fuzzy theory, the fuzzy knowledge table of territory general fuzzy type is established, the Select sentence fuzzy condi- tion form in the standard SQL language has been defined, and the explanation function of the fuzzy select sentence has been con- structed. The user can write fuzzy sentence just as they write ordinary precise select sentence. The system can make automatic diag- nosis and the execution. The select sentence fuzzy expansion in the SQL language has been realized based on the relational database. |
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| Keywords: | SQL language select sentence fuzzy expansion |
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