具有不同值的 Sql 内连接

Question

我有 3 张桌子：

• 银行转帐
• 受益人
• 回调过程

我必须使用内部连接来连接这 3 个表。

在银行转账中，我有一列Number，而Number 在受益人和回调表中重复出现。

在Beneficiaries 表中，数字可以重复多次。

在运行我的内部联接查询时，我得到了超过 1 个结果，而不是得到唯一值。

在Beneficiaries 表中，我还有一个列Beneficial_Name，它是唯一标识结果的列，但是在运行连接查询时，我得到了重复的结果。

我尝试了不同的选项，但效果不佳。

以下是我的代码 - 有人可以帮我吗？

SELECT DISTINCT   
    dbo.BT_Beneficiaries.Beneficial_Name,   
    dbo.Bank_Transfer.Number, dbo.Bank_Transfer.Start_Date, 
    dbo.Bank_Transfer.Team_Name, dbo.Bank_Transfer.Initiator, 
    dbo.Bank_Transfer.Staff, dbo.Bank_Transfer.Process_Name, 
    dbo.Bank_Transfer.Company_Name, dbo.Bank_Transfer.Billing_Amount, 
    dbo.Bank_Transfer.Entry_ID, dbo.Bank_Transfer.Instructions, 
    dbo.Bank_Transfer.BT_Count, dbo.Bank_Transfer.Misspelled, 
    dbo.Bank_Transfer.Sender, dbo.Bank_Transfer.Odd, 
    dbo.Bank_Transfer.Email, dbo.Bank_Transfer.Beneficiary, 
    dbo.Bank_Transfer.Address, dbo.Bank_Transfer.Urgent,
    dbo.Bank_Transfer.Payment, dbo.Bank_Transfer.Sperry, 
    dbo.Bank_Transfer.Contact, dbo.Bank_Transfer.Reasonable, 
    dbo.Bank_Transfer.Evidence_Completed, dbo.Bank_Transfer.End_Date, 
    dbo.Bank_Transfer.First_Mgr_Approval_Name, dbo.Bank_Transfer.First_Mgr_Approval, 
    dbo.Bank_Transfer.First_Mgr_Approval_Date, dbo.Bank_Transfer.CallBack_Workings, 
    dbo.Bank_Transfer.CallBack_Agreement, dbo.Bank_Transfer.CallBack_Procedure, 
    dbo.Bank_Transfer.Second_Mgr_Approval_Name, dbo.Bank_Transfer.Second_Mgr_Approval,
    dbo.Bank_Transfer.Second_Mgr_Approval_Date, dbo.Bank_Transfer.IB, 
    dbo.Bank_Transfer.IB_Date, dbo.Bank_Transfer.ITL_Signatory_Approval, 
    dbo.Bank_Transfer.ITL_Signatory_Name, 
    dbo.BT_Beneficiaries.Account_Number, dbo.BT_Beneficiaries.Currency, 
    dbo.BT_Beneficiaries.Payment_Details, dbo.BT_Beneficiaries.CurrencyPayment, 
    dbo.BT_Beneficiaries.Amount, dbo.BT_Beneficiaries.Purpose, 
    dbo.BT_Beneficiaries.Evidence, dbo.BT_Beneficiaries.Due_Diligence, 
    dbo.BT_Beneficiaries.WC, dbo.BT_Beneficiaries.Resolution_Directors,
    dbo.BT_Beneficiaries.Manager_Approval, dbo.BT_Beneficiaries.Mgr_Approval_Date, 
    dbo.CB_BankAccount.Number AS Expr3, dbo.CB_BankAccount.Company_Name AS Expr4, 
    dbo.CB_BankAccount.Bank_Name, dbo.CB_BankAccount.Bank_Account, 
    dbo.CB_BankAccount.Currency AS Expr5, dbo.CB_BankAccount.Balance, 
    dbo.CB_BankAccount.Bank_Mandate, dbo.CB_BankAccount.Signing_Arrangement AS Expr6,
    dbo.CB_CallBack_Procedure.Number AS Expr8, dbo.CB_CallBack_Procedure.CallStatus, 
    dbo.CB_CallBack_Procedure.Person_CalledBack, dbo.CB_CallBack_Procedure.DateTime,
    dbo.CB_CallBack_Procedure.Notes, dbo.CB_CallBack_Procedure.Mgr_Approval, 
    dbo.CB_CallBack_Procedure.DateTime_Approval, dbo.CB_CallBack_Procedure.Bank_DateTime 
FROM 
    dbo.Bank_Transfer 
INNER JOIN  
    dbo.BT_Beneficiaries ON dbo.Bank_Transfer.Number = dbo.BT_Beneficiaries.Number 
INNER JOIN 
    dbo.CB_BankAccount ON dbo.BT_Beneficiaries.Number = dbo.CB_BankAccount.BT_Number 
INNER JOIN 
    dbo.CB_CallBack_Procedure ON dbo.CB_BankAccount.BT_Number = dbo.CB_CallBack_Procedure.Number

Answer 1

只需添加一个 WHERE 子句，指定 Benficial_Name 列需要说什么来识别唯一记录：

WHERE Beneficiaries = 'Unique Record'

编辑此内容以说出您需要的任何内容。你可以把它放在连接之后。