SQL集团，但只显示特定的塔顶记录

SELECT dbo.dPlaysPerDay.fkPlayerId AS Expr1, 
     sum(dbo.dPlaysPerDay.plays), 
     dbo.dWinners.pkWinnerId AS Expr2, 
     dbo.tbl_kissImages.kissImg AS Expr3, 
     dbo.dWinners.email AS Expr4, 
     dbo.tbl_kissImages.email 
FROM dbo.dPlaysPerDay 
INNER JOIN dbo.dWinners ON dbo.dPlaysPerDay.fkPlayerId = dbo.dWinners.pkWinnerId 
INNER JOIN dbo.tbl_kissImages ON dbo.dWinners.email = dbo.tbl_kissImages.email 
GROUP BY dWinners.email, 
      dPlaysPerDay.fkPlayerId, 
      dWinners.pkWinnerId, 
      tbl_kissImages.kissImg, 
      tbl_kissImages.email 
ORDER BY dWinners.email

我上面的SQL返回像这样的列表：SQL集团，但只显示特定的塔顶记录

54938|14|54938|output/15124.png|156|[email protected] 
54938|4|54938|output/15103.png|156|[email protected] 
54939|10|54939|output/15104.png|156|[email protected] 
54939|9|54939|output/15124.png|156|[email protected] 
54940|10|54940|output/15114.png|156|[email protected] 
54940|9|54940|output/15109.png|156|[email protected]

我需要一群这样的结果通过电子邮件添加了所有的戏剧（第二列），并仅显示该电子邮件地址的第一条记录中的吻图。

感谢所有帮助提前

来源

2011-12-08 user987723

我们怎么知道哪个记录是“第一”，哪个记录最低＃用于png？如果这样的话，Min和Sum应该很好地工作，并且消除这两个领域的团队。在侧面说明中，fkplayerID和pkwinnerID将始终匹配，因为从赢家到每天参加。所以你可以删除其中的一列。 – xQbert

下面假设由第一个你的意思是png格式对于给定电子邮件/播放器的最早的数量。

SELECT dbo.dPlaysPerDay.fkPlayerId AS Expr1, 
    sum(dbo.dPlaysPerDay.plays), 
    dbo.dWinners.pkWinnerId AS Expr2, 
    min(dbo.tbl_kissImages.kissImg) AS Expr3, 
    dbo.dWinners.email AS Expr4, 
    dbo.tbl_kissImages.email 
FROM dbo.dPlaysPerDay 
INNER JOIN dbo.dWinners 
    ON dbo.dPlaysPerDay.fkPlayerId = dbo.dWinners.pkWinnerId 
INNER JOIN dbo.tbl_kissImages 
    ON dbo.dWinners.email = dbo.tbl_kissImages.email 
GROUP BY dWinners.email, 
      dPlaysPerDay.fkPlayerId, 
      dWinners.pkWinnerId, 
      tbl_kissImages.email 
ORDER BY dWinners.email

来源

2011-12-08 11:47:10 xQbert

SQL集团，但只显示特定的塔顶记录

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