SQL语句，仅选择其中一列中包含最大值的行

Question

我有下表：

select * from [Auction].[dbo].[Bids]

我需要选择BidValue最高的行。当我做的时候

SELECT bids.itemId, max(bids.[bidValue]) as HighestBid
FROM [Auction].[dbo].[Bids] bids
WHERE bids.itemId = 2
GROUP BY bids.itemId

我得到了正确的一行：

...但是当我添加另外两个字段时它不起作用（我知道它因为Group by而显示3行，但是如果我不在组中包含这些字段则会引发错误由）：

SELECT bids.itemId, max(bids.[bidValue]) as HighestBid, bids.submittedBy, bids.submittedOn
FROM [Auction].[dbo].[Bids] bids
WHERE bids.itemId = 2
GROUP BY bids.itemId, bids.submittedBy, bids.submittedOn

所以，我需要它用itemId，HighestBid，submittedBy和submittedOn显示一行。

感谢任何帮助！

Answer 1

您可以这样做：

select TOP 1 * from Bids where ItemId = 2 order by BidValue desc

Answer 2

试试这个

select top 1 * from Bids order by BidValue desc

Answer 3

如果超过一个最高值则使用

select TOP (1) with ties * 
from Bids where ItemId = 2 order by BidValue desc