题解 | #统计每种性别的人数#
统计每种性别的人数
http://www.nowcoder.com/practice/f04189f92f8d4f6fa0f383d413af7cb8
select substring_index(profile,',',-1) as gender, count(device_id)as number
//substring_index(字段名称,'分隔符',第几位)
from user_submit
group by gender
统计每种性别的人数
http://www.nowcoder.com/practice/f04189f92f8d4f6fa0f383d413af7cb8
select substring_index(profile,',',-1) as gender, count(device_id)as number
//substring_index(字段名称,'分隔符',第几位)
from user_submit
group by gender
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