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 FROM user_submit GROUP BY gender;
SUBSTRING_INDEX( ) 函数。
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 FROM user_submit GROUP BY gender;
SUBSTRING_INDEX( ) 函数。
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