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 gender, count(*) from ( select device_id, case when profile like "%female" then 'female' else 'male' end gender from user_submit )gender_1 group by gender