题解 | 查找山东大学或者性别为男生的信息
查找山东大学或者性别为男生的信息
https://www.nowcoder.com/practice/979b1a5a16d44afaba5191b22152f64a
select
device_id,
gender,
age,
gpa
from user_profile
where
university='山东大学'
union all
select
device_id,
gender,
age,
gpa
from user_profile
where
gender='male'
union all不去重
