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
substring_index(profile,',',-1) as gender,
count(*) as number #注意，这里不能是count(gender),SQL不认识‘gender’
from
user_submit
group by
gender;
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