获取特定人员列中出现频率最高的值

Question

所以我有一个 table 来收集每个人的数据。

+--------+-------+--------+---------+----------------+
| player | kills | deaths | assists | champSelection |
+--------+-------+--------+---------+----------------+
| Bob    | 1     | 3      | 4       | Horse          |
+--------+-------+--------+---------+----------------+
| Bob    | 2     | 7      | 5       | Horse          |
+--------+-------+--------+---------+----------------+
| Jake   | 5     | 5      | 5       | Dog            |
+--------+-------+--------+---------+----------------+
| Marie  | 2     | 3      | 4       | Dog            |
+--------+-------+--------+---------+----------------+
| Marie  | 1     | 1      | 9       | Horse          |
+--------+-------+--------+---------+----------------+
| Marie  | 6     | 7      | 2       | Dog            |
+--------+-------+--------+---------+----------------+

而我运行

SELECT player, sum(kills), sum(deaths), sum(assists) 
FROM playerTable 
GROUP BY player 
ORDER BY player ASC;

我如何在我的查询中添加他们最常用的 champSelection 是什么？我正在尝试将我的 table 显示为

+--------+-------+--------+---------+----------------+
| player | kills | deaths | assists | champSelection |
+--------+-------+--------+---------+----------------+
| Bob    | 3     | 10     | 9       | Horse          |
+--------+-------+--------+---------+----------------+
| Jake   | 5     | 5      | 5       | Dog            |
+--------+-------+--------+---------+----------------+
| Marie  | 9     | 11     | 15      | Dog            |
+--------+-------+--------+---------+----------------+

Answer 1

试试这个：

SELECT player, SUM(kills), SUM(deaths), SUM(assists), frequency
FROM
(
    SELECT player, SUM(kills) AS kills, SUM(deaths) AS deaths, SUM(assists) AS assists, champSelection, COUNT(*) AS frequency
    FROM playerTable
    GROUP BY player, champSelection
    ORDER BY frequency DESC
) AS inner_table
GROUP BY player

获取特定人员列中出现频率最高的值

Getting the most frequent value in a column for a specific person

mysql

group-by

rank

mysql-5.7