2

我有一个内部连接语句来获取在 3 个进程上运行并登录三个表的 id，

Select  a.InquiryAccount ,a.InquiryAmount,a.InquiryCustName,a.InquiryLang, b.PayAmountPaid,b.PayScreenText,b.PayReceiptText, c.RevRefNo
from
    inquiry a
        inner join
    Payment b
        on a.InquiryAccount = b.PayAccount
        inner join 
    Reversal c
        on a.InquiryAccount = c.RevAccount

order by c.RevRefNo desc

它给出了我想要的结果，但是有些值加倍或重复，我想跟踪在内部连接结果上重复的帐户。

我尝试在我的内部连接上做这样的事情：

SELECT *
FROM Inquiry
WHERE InquiryAccount IN (
 SELECT InquiryAccount
 FROM Inquiry
 GROUP BY InquiryAccount 
 HAVING (COUNT(InquiryAccount ) > 1)
)

显示唯一重复的帐户。但是当我尝试group by它Inner Join得到一个错误时，是否可以group by打开inner join？或者是否有任何关于在inner join声明中发现重复值的解决方案？

这是我的内部连接语句的结果：

InquiryAccount  InquiryAmount   InquiryLang
    10176601              124070    0
    12344556              160050    1
    10445654              160050    1
    23456789              160050    1
    22456666              160050    1
    45324681              160050    1
    14356890              160050    1
    44566666              160050    1
    22456666              160050    1
    10176601              160050    1

这是我想从我的内部连接语句中生成的示例，它只获取重复的帐户：

InquiryAccount  InquiryAmount   InquiryLang
10176601              124070    0
10176601              160050    1
22456666              160050    1
22456666              160050    1
4

1 回答 1

2

可能这对您有帮助-

SELECT DISTINCT a.InquiryAccount
        ,a.InquiryAmount
        ,a.InquiryCustName
        ,a.InquiryLang
        ,b.PayAmountPaid
        ,b.PayScreenText
        ,b.PayReceiptText
        ,c.RevRefNo 
FROM dbo.inquiry a 
JOIN dbo.Payment b ON a.InquiryAccount = b.PayAccount 
JOIN dbo.Reversal c ON a.InquiryAccount = c.RevAccount
ORDER BY c.RevRefNo DESC
于 2013-05-29T05:02:53.617 回答