写一个查询,找出我们在每个州有多少性别的客户
select Gender, count(*) as Number_of_each_gender
from Customer_info
group by Gender;
这输出了我下面的表格,这是正确的,但是我在每个State part中缺少,有什么帮助吗?MySQL
Gender Number_of_each_gender
Male 4
Female 3
发布于 2020-12-06 15:46:18
将State和Group By添加到查询中
SELECT Gender, State, COUNT(*) AS Number_of_each_gender
FROM Customer_info
GROUP BY State, Gender
ORDER BY State,Gender;
https://stackoverflow.com/questions/65169807
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