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 in (20,21,22,23,24) then '20-24岁' /*用between 20 and 24都可*/ when age>=25 then '25岁及以上' else '其他' end as age_cut from user_profile ;