【简答题】用一条SQL语句查询出每门课都大于80分的学生姓名 准备数据的sql代码: create table scor

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【简答题】用一条SQL语句查询出每门课都大于80分的学生姓名 准备数据的sql代码: create table score(id int primary key auto_increment, name varchar(20),sub ject varchar(20), score int); insert into score values (null,"张三","语文",81), (null,"张三","数学",75), (null,"李四","语文",76), (null,"李四","数学",90),(null,"王 五","语文",81), (null,"王五","数学",100), (null,"王五 ","英语",90);

【简答题】用一条SQL语句查询出每门课都大于80分的学生姓名 准备数据的sql代码: create table scor

热搜:删除表中所有数据的sql语句