标准SQL语言中Select语句模糊扩展  

Select sentence fuzzy expansion in standard SQL language

作　　者：张春生[1] 白玉峰[1] 李艳[1] 

机构地区：[1]内蒙古民族大学数学与计算机科学学院,内蒙古通辽028043

出　　处：《微计算机信息》2006年第11X期268-270,共3页Control & Automation

基　　金：内蒙古高校科学研究项目(NJ03169)

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.In the fuzzy theory, the fuzzy knowledge table of territory general fuzzy type is established, the Select sentence fuzzy condition form in the standard SQL language has been defined, and the explanation function of the fuzzy select sentence has been constructed. The user can write fuzzy sentence just as they write ordinary precise select sentence. The system can make automatic diagnosis and the execution. The select sentence fuzzy expansion in the SQL language has been realized based on the relational database.

关 键 词：SQL语言 SELECT语句 模糊扩展 

分 类 号：TP392[自动化与计算机技术—计算机应用技术]