Question

我有一个会计情况，我们在同一会计情况下支付（政策交易类型NBS）和负（政策交易类型取消或XLN）。我需要的行只有两个Tran Type＆＃39; NBS＆＃39;和＆＃39; XLN＆＃39;对于同一个客户。

示例数据：

    Client     PolicyNo  Revenue   TranType
   -------------------------------------------
    John Doe   Pol1234   1000.00     NBS
    John Doe   Pol1234  -1000.00     XLN
    Jane Loe   Pol5675   9000.00     NBS
    Jane Loe   Pol5676   8000.00     NBS
    Bill Foe   Pol0985   1000.00     NBS
    Bill Foe   Pol0987  -1000.00     XLN

查询只需返回前两行，因为Client和PolicyNo匹配，但也因为每一行都是NBS和XLN。如果同一客户的两条线路都是NBS，或者它们都是XLN，则需要将其排除在外。如果PolicyNo不匹配，则需要将其排除。

现在，我的查询返回完整集。（为简单起见，我省略了上面示例中的一些列。

SELECT 
Company_1.Name, 
isnull(Customer.FirmNameCust, 
isnull(Customer.FirstName + ' ', '') +  isnull(Customer.LastName, '')) AS Client,
BasicPolInfo.PolNo,                            
DirectBillEntryHeader.StmtDate, 
irectBillEntryHeader.Description, 
DirectBillEntryDetail.*
FROM DirectBillEntryHeader 
INNER JOIN 
DirectBillEntryDetail 
ON DirectBillEntryHeader.DBEHId = DirectBillEntryDetail.DBEHId 
INNER JOIN BasicPolInfo 
ON DirectBillEntryDetail.PolId = BasicPolInfo.PolId 
INNER JOIN Customer 
ON DirectBillEntryDetail.CustId = Customer.CustId 
AND BasicPolInfo.CustId = Customer.CustId 
INNER JOIN Company 
ON DirectBillEntryDetail.WritingCoCode = Company.CoCode 
INNER JOIN Employee 
ON Customer.Prod1Code = Employee.EmpCode 
INNER JOIN Company Company_1 
ON Company.ParentCoCode = Company_1.CoCode
       WHERE (DirectBillEntryDetail.TranType = 'NBS') 
       AND (DirectBillEntryHeader.StmtDate >= DateAdd(DD, - 30, GETDATE())) 
       OR (DirectBillEntryDetail.TranType = 'XLN')
       AND (DirectBillEntryHeader.StmtDate >= DateAdd(DD, - 30, GETDATE()))

Answer 1

您可以使用EXISTS：

SELECT t1.*
FROM dbo.TableName t1
WHERE t1.TranType IN('NBS','XLN')
AND EXISTS
(
    SELECT 1 FROM dbo.TableName t2
    WHERE t1.Client = t2.Client
      AND t1.PolicyNo = t2.PolicyNo
      AND t1.TranType <> t2.TranType
      AND t2.TranType IN('NBS','XLN')   
 )

Answer 2

使用GROUP BY和HAVING查找具有这两种类型的所有客户端/策略。然后在你的from子句中使用它，这样你就只得到那些客户端/策略。

select ...
from
(
    select client, policyno 
    from mytable
    where trantype in ('NBS','XLN')
    group by client, policyno 
    having count(distinct trantype) = 2
) wanted
inner join sometable on sometable.client = wanted.client and sometable.policyno = wanted.policyno
...

SQL查询：如果存在值，我需要两行

2 个答案: