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 >= 20 AND age <= 24 THEN "20-24岁"
WHEN age >=25 THEN "25岁及以上"
ELSE "其他"
END AS age_cut
FROM user_profile
#SQL#