两列对MYSQL进行排序

Question

我试图根据性别是否是男孩来在数据库中显示姓名。 我目前正在尝试此查询，但似乎无法正常工作。

SELECT
  Name,
  COUNT(Name),
  Gender='Boy' AS totalNumber
FROM
  finaldb
GROUP BY
  Name,
  Gender
ORDER BY
  COUNT(Name) DESC
LIMIT 5

有什么建议么？

Answer 1

我认为Gender='Boy'在错误的位置，放在哪里

SELECT Name, Gender, COUNT(Name) AS totalNumber FROM finaldb WHERE Gender='Boy' GROUP BY Name, Gender ORDER BY COUNT(Name) DESC LIMIT 5

一般而言，是阅读WHERE和SQL的好地方：

http://www.w3schools.com/sql/sql_where.asp