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
# 两种方式，核心都是做一个包含性别的新表 # select case when profile like '%,male' then 'male' when profile like '%,female' then 'female' end gender, count(*) as number # from user_submit # group by gender select SUBSTRING_INDEX(profile,",",-1) as gender, count(*) as number from user_submit group by gender
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