如何在sql server中更正写入我的更新查询

如何编写sql server查询以更新正确的金额。 这是我目前的情况，但这不是正确的解决方案

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我试图计算PlayerId和PlayerBonsId的兑换BonusAmount之和，但我需要使用DBT.ExternalWAllet标志从db中获取正确的金额

UPDATE R SET          
        [RedeemedBonusAmount] = AGGR.[RedeemedBonusAmount]
    FROM #Results R
    JOIN 
    (
        SELECT  Aggr.[PlayerId],
                aggr.[PlayerBonusId],
                    CASE 
                    WHEN DBT.ExternalWallet=1 THEN SUM(Aggr.Amount1)
                    ELSE SUM(Aggr.[Amount2]) 
                END AS [RedeemedBonusAmount]
        FROM table_1 Aggr
        JOIN table_2 DPB ON Aggr.[PlayerId] = DPB.[PlayerId]
        JOIN table_3 DB ON DPB.BonusId = DB.Id
        JOIN table_4 DBT ON DB.BonusTypeId= DBT.Id
        WHERE  Aggr.[TimeId] BETWEEN 2018110100 AND 2018122123 and aggr.playerid=362920
        GROUP BY Aggr.[PlayerId],aggr.[PlayerBonusId],DBT.ExternalWallet
    ) AS AGGR ON R.playerid=Aggr.playerid and R.PlayerBonusId=Aggr.[PlayerBonusId]

以下是仅运行select时得到的表格：

PlayerId    PlayerBonusId   RedeemedBonusAmount
362920      619622          380.000000
362920      619624          19.000000
362920      619622          0.000000
362920      619624          0.000000

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不要把总数按大小写，而是把总数按大小写

然后，您也不需要在DBT.ExternalWallet上分组，它不用于外部查询的联接

UPDATE R 
SET [RedeemedBonusAmount] = AGGR.[RedeemedBonusAmount]
FROM #Results R
JOIN 
(
  SELECT  Aggr.[PlayerId],
          Aggr.[PlayerBonusId],
          SUM(CASE 
              WHEN DBT.ExternalWallet=1 THEN Aggr.Amount1
              ELSE Aggr.[Amount2]
              END) AS [RedeemedBonusAmount]
   FROM table_1 Aggr
   JOIN table_2 DPB ON Aggr.[PlayerId] = DPB.[PlayerId]
   JOIN table_3 DB ON DPB.BonusId = DB.Id
   JOIN table_4 DBT ON DB.BonusTypeId= DBT.Id
   WHERE  Aggr.[TimeId] BETWEEN 2018110100 AND 2018122123 and aggr.playerid=362920
   GROUP BY Aggr.[PlayerId],aggr.[PlayerBonusId]
) AS AGGR ON R.playerid=Aggr.playerid and R.PlayerBonusId=Aggr.[PlayerBonusId]

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你想干什么？请提供我正试图通过PlayerId和PlayerBonsId计算兑换的BonusAmount之和，但我需要使用DBT.ExternalWAllet标志从数据库中获取正确的金额从案例中取出总和：

sum（case…

为了更好，添加更多上下文和一些测试数据以帮助您。