SQL —— 獲取重復某個字段的第一條記錄

----------用來雙重排序，且獲取唯一
SELECT * FROM Mstching025Play WHERE ActivitySceneID=1
go
SELECT ROW_NUMBER() OVER (ORDER BY AScore DESC,ATime ASC) AS Rank, * FROM
(
SELECT 
AScore,ATime,MerchantWeixinUserID,
ROW_NUMBER() OVER (partition by MerchantWeixinUserID order by ASCORE DESC,ATime ASC) AS SX FROM 
(
SELECT MerchantWeixinUserID,TodayTimes,SUM(UsedSeconds) AS ATime,SUM(Score) AS AScore,CONVERT(varchar(100),CreateTime, 23) AS DT FROM Mstching025Play WHERE ActivitySceneID=1
GROUP BY CONVERT(varchar(100),CreateTime, 23),MerchantWeixinUserID,TodayTimes
)a
GROUP BY MerchantWeixinUserID,ATIME,ASCORE
)b
WHERE SX=1 --AND ASCORE=8

用來測試的數據列表：

篩選后的結果：ASCORE以及ATIME進行排序所得