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
http://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 >= 20 then '20-24岁'
else '其他'
end as age_cut
from user_profile;
case
when age < 20 then '20岁以下'
when age >= 25 then '25岁及以上'
when age >= 20 then '20-24岁'
else '其他'
end as age_cut
from user_profile;
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