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 if(profile like "%female%","female","male") as gender, count(device_id) as number from user_submit group by gender
写对了,但是if函数里面后两项忘了加引号,注意!
统计每种性别的人数
https://www.nowcoder.com/practice/f04189f92f8d4f6fa0f383d413af7cb8
select if(profile like "%female%","female","male") as gender, count(device_id) as number from user_submit group by gender
写对了,但是if函数里面后两项忘了加引号,注意!
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