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, IF (age < 20,"20岁以下", IF(age <= 24,"20-24岁", IF(age >= 25,"25岁及以上","其他") ) ) as age_cut from user_profile
查看不同年龄段的用户明细
https://www.nowcoder.com/practice/ae44b2b78525417b8b2fc2075b557592
select device_id,gender, IF (age < 20,"20岁以下", IF(age <= 24,"20-24岁", IF(age >= 25,"25岁及以上","其他") ) ) as age_cut from user_profile
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