题解 | #查看不同年龄段的用户明细#
查看不同年龄段的用户明细
https://www.nowcoder.com/practice/ae44b2b78525417b8b2fc2075b557592
select device_id ,gender,
case
when age <20 then '20岁以下'
when age >=25 then '25岁及以上'
when age between 20 and 24 then '20-24岁'
else '其他'
end as 'age_cut'
from user_profile
