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' when profile like '%,female' then 'female' end gender, count(device_id) from user_submit group by gender;
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