题解 | #查找山东大学男生的GPA#
查找山东大学男生的GPA
http://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";