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(*) as number from ( select substr(profile,15,6) as gender, device_id from user_submit ) t1 group by gender
统计每种性别的人数
https://www.nowcoder.com/practice/f04189f92f8d4f6fa0f383d413af7cb8
select gender, count(*) as number from ( select substr(profile,15,6) as gender, device_id from user_submit ) t1 group by gender
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