题解 | #统计每种性别的人数#
统计每种性别的人数
https://www.nowcoder.com/practice/f04189f92f8d4f6fa0f383d413af7cb8
SELECT
CASE
WHEN profile LIKE '%,male' THEN 'male'
ELSE 'female'
END gender,COUNT(device_id) AS number
FROM user_submit
GROUP BY gender;
统计每种性别的人数
https://www.nowcoder.com/practice/f04189f92f8d4f6fa0f383d413af7cb8
SELECT
CASE
WHEN profile LIKE '%,male' THEN 'male'
ELSE 'female'
END gender,COUNT(device_id) AS number
FROM user_submit
GROUP BY gender;
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