[英]Select Max of sum Value in mysql
我的数据库中有一个表,如下所示:
m | v
-------
1 | 10
1 | 15
1 | 15
2 | 8
2 | 12
2 | 14
3 | 25
3 | 15
3 | 18
4 | 12
我想选择最大总和的v
按组m
和在第一步骤中创建表,此代码:
select m,sum(v) as v from table group by m
m | v
-------
1 | 35
2 | 34
3 | 54
4 | 12
并且对于此表中的select max,我的代码是:
select max(v) as v,m from
(select sum(v) as v,m from table group by `m`)ta
v | m
------
54 | 1
v | m
------
54 | 3
我不知道解决这个问题。
尝试这个:
select m,sum(v) as v from table group by m ORDER BY v DESC LIMIT 0,1
试试这个查询
SELECT v,m from
(SELECT SUM(v) as v, m FROM maxValues GROUP BY `m`) ta
ORDER BY v DESC
LIMIT 1
尝试这个
(select max(sum(v)), m as v,m from table group by `m`)
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