| SQL Server环境下交与差运算的设计与实现 |
| |
| 引用本文： | 肖海蓉.SQL Server环境下交与差运算的设计与实现[J].计算机与数字工程,2011,39(1):173-175,182. |
| |
| 作者姓名： | 肖海蓉 |
| |
| 作者单位： | 陕西理工学院计算机科学与技术系,汉中,723000 |
| |
| 基金项目： | 陕西理工学院2010教改项目(编号:XJG1034)资助 |
| |
| 摘 要： | 针对关系代数中的交与差运算,重点分析了在SQL Server的环境下,如何设计一个通用的SQL查询语句,同时给出了两种运算的实现方法。通过实例验证了所设计的查询语句的有效性,并为更好地理解关系代数运算与SQL语句之间的关系奠定了基础。
|
| 关 键 词： | SQL Server SQL 交运算 差运算 |
Design and Realization of Intersection and Minus Based on SQL Server |
| |
| Xiao Hairong.Design and Realization of Intersection and Minus Based on SQL Server[J].Computer and Digital Engineering,2011,39(1):173-175,182. |
| |
| Authors: | Xiao Hairong |
| |
| Affiliation: | Xiao Hairong(Dept.of C.S.T.of Shaanxi University of Technology,Hanzhong 723000) |
| |
| Abstract: | To solve realization of intersection and minus about relational algebra,a general SQL query statement is designed in SQL server environment,and realization method of two operation is presented.The experiment result proves that design of the SQL query statement is effective,and forms the basis for understanding relation of relational algebra and SQL statement. |
| |
| Keywords: | SQL Server SQL intersection minus |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
