擺脫加入的SQL查詢中的重複項

Question

我想知道是否有任何方法可以擺脫它創建的重複行信息，以便在一個表中有2個項目時填充結果中的空間，但在另一箇中只有1個。我嘗試了不同的連接和一組，並且都沒有工作。我想我需要某種嵌套的子查詢或某種限制或rownum = 1條件。感謝您提供的任何幫助。

我的代碼：

select distinct 
    Driver_Extra_Pay.Order_ID as 'Order', 
    Deduct_Code_ID as 'D/E Code', 
    Short_Desc as 'Pay Description', 
    Driver_Extra_Pay.Amount as 'Pay Amount', 
    Driver_Extra_Pay.Amount_D as 'Pay Date', 
    Other_Charge.Descr as 'Charge Description', 
    Other_Charge.Amount as 'Charge Amount', 
    Other_Charge.Amount_D as 'Charge Date' 

from 
    Driver_Extra_Pay 
inner join 
    Other_Charge on Other_Charge.Order_ID = Driver_Extra_Pay.Order_ID 

where Driver_Extra_Pay.Amount_D between '03/29/2016' and '03/30/2016' 

order by Driver_Extra_Pay.Order_ID 

這是結果我得到。它是這樣寫的，用作比較工具，但是當它只有1時，它會給出雙「Lumper」條目。似乎它只是複製它來填充空白區域。

我想它看起來像這樣的輸出，而不是，但我不知道的編碼來做到這一點。

Answer 1

要顯示數據的方式不會在SQL工作。如果您想要在表示層中，可以用這種方式顯示它。但是由於其他費用似乎並不直接與駕駛員額外支付相關，也許您真正需要獲得適當數據的是UNION ALL。這將在兩個表格中返回該日期範圍內的所有費用，以便稍後在需要時進行總計。

SELECT * 
    FROM 
    (select distinct 
     Driver_Extra_Pay.Order_ID as 'Order', 
     Deduct_Code_ID as 'D/E Code', 
     Short_Desc as 'Description', 
     Driver_Extra_Pay.Amount as 'Amount', 
     Driver_Extra_Pay.Amount_D as 'Date' 
    from 
     Driver_Extra_Pay 
    where Driver_Extra_Pay.Amount_D between '03/29/2016' and '03/30/2016' 
    UNION ALL 
    select distinct 
     Other_Charge.Order_ID as 'Order', 
     'Other' as 'D/E Code', 
     Other_Charge.Descr , 
     Other_Charge.Amount, 
     Other_Charge.Amount_D, 
    from 
     Other_Charge 
    where Other_Charge .Amount_D between '03/29/2016' and '03/30/2016') a 
    order by [Order] 

該查詢將報告沒有相應的驅動額外支付記錄（當前您的查詢不會。）如果你需要，那就試試這個其他費用：

SELECT * 
FROM 
(select distinct 
    Driver_Extra_Pay.Order_ID as 'Order', 
    Deduct_Code_ID as 'D/E Code', 
    Short_Desc as 'Description', 
    Driver_Extra_Pay.Amount as 'Amount', 
    Driver_Extra_Pay.Amount_D as 'Date' 
from 
    Driver_Extra_Pay 
where Driver_Extra_Pay.Amount_D between '03/29/2016' and '03/30/2016' 
UNION ALL 
select distinct 
    Other_Charge.Order_ID as 'Order', 
    'Other' as 'D/E Code', 
    Other_Charge.Descr , 
    Other_Charge.Amount, 
    Other_Charge.Amount_D, 
from 
    Driver_Extra_Pay 
inner join 
    Other_Charge on Other_Charge.Order_ID = Driver_Extra_Pay.Order_ID 
where Driver_Extra_Pay.Amount_D between '03/29/2016' and '03/30/2016') a 
order by [Order]