sql ms求和的最大值

Question

SELECT  tableResults.PoliticalParty, MAX(PoliticalPartyVotes.TotalVotes)  AS [EX11]
FROM(
    SELECT tableResults.PoliticalParty, Sum(INT(tableResults.Votes)) AS TotalVotes
    FROM tableResults 
    GROUP BY tableResults.PoliticalParty
) AS PoliticalPartyVotes;

不起作用，tableResults.PoliticalParty最多不显示一个结果。

Answer 1

如果您希望PoliticalParty的票数最多，则可以在现有的汇总查询中使用ORDER BY和TOP (1)：

SELECT TOP (1) PoliticalParty, Sum(INT(Votes)) AS TotalVotes
FROM tableResults 
GROUP BY tableResults.PoliticalParty
ORDER BY Sum(INT(Votes)) DESC

要允许最高并列（即，两个PoliticalParty具有相同的最大投票总数），您可以改用TOP (1) WITH TIES。