在SQL中，如何获取具有特定列最大值的行?

问题描述

我有一个查询:

SELECT COUNT(*) as votes, a.member_id
FROM ballots a
WHERE ballot_id = 1
GROUP BY a.member_id

其结果类似于:

votes  member_id
1      paul
5      mike
3      noynoy
10     andy
2      noel

我希望能够获得安迪"这一行，因为他获得了最高的票数".

I'd like to be able to get the row "andy" because he got the highest "votes".

如何更改查询以执行此操作?

How do I change my query to do this?

在此先感谢您的帮助:)

Thanks in advance for your help :)

推荐答案

您可以使用ORDER BY然后按DESC降序从最高到最低投票对其进行排序.然后LIMIT结果仅显示一行(即最高的一行).

You can order it from highest to lowest votes using ORDER BY and then DESC for descending order. Then LIMIT the results to only one row (i.e. the highest).

SELECT COUNT(*) as votes, a.member_id
FROM ballots a
WHERE ballot_id = 1
GROUP BY a.member_id
ORDER BY votes DESC
LIMIT 1

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