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 '%female' then 'female'
else 'male'
end
as gender,
count(*) number
from user_submit
group by gender;
文本函数：
select substring_index(profile,',',-1) gender,count(device_id) number
from user_submit
group by gender;
