25 lines
576 B
MySQL
25 lines
576 B
MySQL
|
-- stu，列 name, score, course，查询每一科分数大于 60 的学生姓名
|
|||
|
|
|
|||
|
|
|
|||
|
|
-- 创建表
|
|||
|
|
create table stu(
|
|||
|
|
id int primary key auto_increment,
|
|||
|
|
name varchar(20),
|
|||
|
|
score int,
|
|||
|
|
course varchar(20)
|
|||
|
|
);
|
|||
|
|
-- 生成一些数据
|
|||
|
|
insert into stu(name, score, course)
|
|||
|
|
values ('张三', 70, '语文'),
|
|||
|
|
('李四', 80, '语文'),
|
|||
|
|
('王五', 60, '语文'),
|
|||
|
|
('赵六', 90, '语文');
|
|||
|
|
|
|||
|
|
SELECT DISTINCT stu.name FROM stu where stu.name
|
|||
|
|
not in( SELECT stu.name FROM stu WHERE stu.score<60);
|
|||
|
|
|
|||
|
|
SELECT name
|
|||
|
|
FROM stu
|
|||
|
|
GROUP BY name
|
|||
|
|
HAVING MIN(score) > 60;
|