[英]Select Max of sum Value in mysql
我的數據庫中有一個表,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
我想選擇最大總和的v
按組m
和在第一步驟中創建表,此代碼:
select m,sum(v) as v from table group by m
m | v
-------
1 | 35
2 | 34
3 | 54
4 | 12
並且對於此表中的select max,我的代碼是:
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
我不知道解決這個問題。
嘗試這個:
select m,sum(v) as v from table group by m ORDER BY v DESC LIMIT 0,1
試試這個查詢
SELECT v,m from
(SELECT SUM(v) as v, m FROM maxValues GROUP BY `m`) ta
ORDER BY v DESC
LIMIT 1
嘗試這個
(select max(sum(v)), m as v,m from table group by `m`)
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