如何从 sql 中的 table 中获取最小值

Question

我正在从 table 获得最高值和最低值，table 接受空值 also.i 我能够获得最高值但不能获得最低值。

这是我的 table 数据：

PostBidId UserId   PostId        BidAmount
-------------------------------------------------
1691       159       1239   
1684       147       1239        100000000000000
1683       147       1239        12345666666
1680       147       1239        6777777
1682       147       1239        900
1681       147       1239        90000000

我的最高值是 100000000000000，最低值 id 900。

这是我的代码：

SELECT TOP(1) 
    BidAmount AS HighestBid, '0' AS LowestBid 
FROM 
    [dbo].[Bids] 
WHERE
    PostId = 1239 AND BidAmount != '' 
ORDER BY
    BidAmount ASC

输出为：100000000000000

SELECT
    MIN (BidAmount) AS LowestBid, '0' AS HighestBid 
FROM 
    [dbo].[Bids] 
WHERE
    PostId = 1239 AND BidAmount != ''

输出是：100000000000000，我期望的是：900。

Answer 1

    SELECT MIN (CAST (BidAmount as bigint)) AS LowestBid, '0' AS HighestBid
    FROM [dbo].[Bids] 
    WHERE PostId = 1239 AND BidAmount != ''

如何从 sql 中的 table 中获取最小值

How to get least value from table in sql

sql

sql-server

min