ile:14用户管理.wmv file:13联合查询.wmv file:11使用some，all和any的子查询.wmv file:9子查询分类.wmv file:10比较运算符和in中的子查询.wmv file:day11.zip file:5内连接.wmv

ile:13group by子句.wmv file:14having子句.wmv file:15orderby，limit子句.wmv file:12like运算符.wmv file:11is，between，in运算符.wmv file:9基本查询，select子句.wmv file:8删除和修改数据.wmv file:10where子句，基本运算符.wmv file:day10.zip file:5视图.wmv file:4day9作业(3).wmv