Question

在下面的代码中，左连接不显示左边的所有记录!!!

select *,CASE WHEN (ResDEBIT> ResCREDIT) THEN (ResDEBIT) when (ResCREDIT> ResDEBIT)then (ResCREDIT) else 0 END AS Mande,CASE WHEN (ResDEBIT> ResCREDIT) THEN ('debit') when (ResCREDIT> ResDEBIT)then ('credit') ELSE ('ziro') END AS Status from(SELECT     Sales.CustomerInfo.CustomerInfoID,FullTitle=(cast(Sales.CustomerInfo.AccountFK as nvarchar)+' - '+Sales.CustomerInfo.FullName), Sales.CustomerInfo.TopicFK, Sales.CustomerInfo.AccountFK,Sales.CustomerInfo.CompanyRegNo,Sales.CustomerInfo.PersonTypeFK,Sales.CustomerInfo.BankAccountDetail,Sales.CustomerInfo.BankAccountNo, Sales.CustomerInfo.AccountNo, Sales.CustomerInfo.FullName, 
                      Sales.CustomerInfo.Birthdate, Sales.CustomerInfo.TitleFK, Sales.CustomerInfo.RegistrationDate, Sales.CustomerInfo.CustomerPhotoFK, Sales.CustomerInfo.SocialNo, 
                      Sales.CustomerInfo.WebPage, Sales.CustomerInfo.JobFK, Sales.CustomerInfo.MaxDebitLimit, Sales.CustomerInfo.MaxChequeCredit, 
                      Sales.CustomerInfo.PreferedPaymentMethodFK, Sales.CustomerInfo.FirstBalanceKind, Sales.CustomerInfo.FirstBalance, Sales.CustomerInfo.Debit, 
                      Sales.CustomerInfo.Credit, Sales.CustomerInfo.Note, Sales.CustomerInfo.FinancialPeriodFK, Sales.CustomerInfo.CompanyInfoFK, 
                      isnull(SUM(Accounting.DocumentDetail.Debit),0) AS Debit1, isnull(SUM(Accounting.DocumentDetail.Credit),0) AS Credit1, (CASE WHEN (isnull(SUM(Accounting.DocumentDetail.Credit),0) 
                      - isnull(SUM(Accounting.DocumentDetail.Debit),0)) < 0 THEN (isnull(SUM(Accounting.DocumentDetail.Debit),0) - isnull(SUM(Accounting.DocumentDetail.Credit),0)) ELSE 0 END) AS ResDEBIT, 
                      (CASE WHEN (isnull(SUM(Accounting.DocumentDetail.Credit),0) - isnull(SUM(Accounting.DocumentDetail.Debit),0)) > 0 THEN (isnull(SUM(Accounting.DocumentDetail.Credit),0) 
                      - isnull(SUM(Accounting.DocumentDetail.Debit),0)) ELSE 0 END) AS ResCREDIT,Sales.CustomerInfo.BlackListed, Sales.CustomerInfo.IsActive
FROM         Sales.CustomerInfo  left JOIN
                      Accounting.DocumentDetail ON Sales.CustomerInfo.AccountFK = Accounting.DocumentDetail.TopicFK
GROUP BY Sales.CustomerInfo.CustomerInfoID, Sales.CustomerInfo.TopicFK, Sales.CustomerInfo.AccountFK, Sales.CustomerInfo.AccountNo, 
                      Sales.CustomerInfo.FullName, Sales.CustomerInfo.Birthdate, Sales.CustomerInfo.TitleFK,Sales.CustomerInfo.CompanyRegNo,Sales.CustomerInfo.PersonTypeFK,Sales.CustomerInfo.BankAccountDetail,Sales.CustomerInfo.BankAccountNo, Sales.CustomerInfo.RegistrationDate, 
                      Sales.CustomerInfo.CustomerPhotoFK, Sales.CustomerInfo.SocialNo, Sales.CustomerInfo.WebPage, Sales.CustomerInfo.JobFK, Sales.CustomerInfo.MaxDebitLimit, 
                      Sales.CustomerInfo.MaxChequeCredit, Sales.CustomerInfo.PreferedPaymentMethodFK, Sales.CustomerInfo.FirstBalanceKind, Sales.CustomerInfo.FirstBalance, 
                      Sales.CustomerInfo.Debit, Sales.CustomerInfo.Credit, Sales.CustomerInfo.Note, Sales.CustomerInfo.FinancialPeriodFK, Sales.CustomerInfo.CompanyInfoFK, 
                      Sales.CustomerInfo.BlackListed, Sales.CustomerInfo.IsActive) CustomerInfo

Answer 1

按列

检查您的论坛存在多少条不同的记录

Select distinct
        Sales.CustomerInfo.CustomerInfoID
        ,Sales.CustomerInfo.TopicFK
        ,Sales.CustomerInfo.AccountFK
        ,Sales.CustomerInfo.AccountNo
        ,Sales.CustomerInfo.FullName
        ,Sales.CustomerInfo.Birthdate
        ,Sales.CustomerInfo.TitleFK
        ,Sales.CustomerInfo.CompanyRegNo
        ,Sales.CustomerInfo.PersonTypeFK
        ,Sales.CustomerInfo.BankAccountDetail
        ,Sales.CustomerInfo.BankAccountNo
        ,Sales.CustomerInfo.RegistrationDate
        ,Sales.CustomerInfo.CustomerPhotoFK
        ,Sales.CustomerInfo.SocialNo
        ,Sales.CustomerInfo.WebPage
        ,Sales.CustomerInfo.JobFK
        ,Sales.CustomerInfo.MaxDebitLimit
        ,Sales.CustomerInfo.MaxChequeCredit
        ,Sales.CustomerInfo.PreferedPaymentMethodFK
        ,Sales.CustomerInfo.FirstBalanceKind
        ,Sales.CustomerInfo.FirstBalance
        ,Sales.CustomerInfo.Debit
        ,Sales.CustomerInfo.Credit
        ,Sales.CustomerInfo.Note
        ,Sales.CustomerInfo.FinancialPeriodFK
        ,Sales.CustomerInfo.CompanyInfoFK
        ,Sales.CustomerInfo.BlackListed
        ,Sales.CustomerInfo.IsActive
from Sales.CustomerInfo

上述查询的返回记录数相同...要从左表中获取所有记录，您可以使用以下两种方法中的任何一种，但我更喜欢第二种方法 1）使用子查询 2）首先在单独的查询中进行聚合并再次将其与左表连接...查询应该与下面的代码类似：

;WITH CTE ( AccountFK, Debit1   ,Credit1    ,ResDEBIT   ,ResCREDIT  )
AS (
SELECT
    Sales.CustomerInfo.AccountFK
    ,isnull(SUM(Accounting.DocumentDetail.Debit), 0) AS Debit1
    ,isnull(SUM(Accounting.DocumentDetail.Credit), 0) AS Credit1
    ,(
        CASE 
            WHEN (isnull(SUM(Accounting.DocumentDetail.Credit), 0) - isnull(SUM(Accounting.DocumentDetail.Debit), 0)) < 0
                THEN (isnull(SUM(Accounting.DocumentDetail.Debit), 0) - isnull(SUM(Accounting.DocumentDetail.Credit), 0))
            ELSE 0
            END
        ) AS ResDEBIT
    ,(
        CASE 
            WHEN (isnull(SUM(Accounting.DocumentDetail.Credit), 0) - isnull(SUM(Accounting.DocumentDetail.Debit), 0)) > 0
                THEN (isnull(SUM(Accounting.DocumentDetail.Credit), 0) - isnull(SUM(Accounting.DocumentDetail.Debit), 0))
            ELSE 0
            END
        ) AS ResCREDIT
FROM Sales.CustomerInfo
LEFT JOIN Accounting.DocumentDetail ON Sales.CustomerInfo.AccountFK = Accounting.DocumentDetail.TopicFK
GROUP BY Sales.CustomerInfo.CustomerInfoID
    ,Sales.CustomerInfo.TopicFK
    ,Sales.CustomerInfo.AccountFK
    ,Sales.CustomerInfo.AccountNo
    ,Sales.CustomerInfo.FullName
    ,Sales.CustomerInfo.Birthdate
    ,Sales.CustomerInfo.TitleFK
    ,Sales.CustomerInfo.CompanyRegNo
    ,Sales.CustomerInfo.PersonTypeFK
    ,Sales.CustomerInfo.BankAccountDetail
    ,Sales.CustomerInfo.BankAccountNo
    ,Sales.CustomerInfo.RegistrationDate
    ,Sales.CustomerInfo.CustomerPhotoFK
    ,Sales.CustomerInfo.SocialNo
    ,Sales.CustomerInfo.WebPage
    ,Sales.CustomerInfo.JobFK
    ,Sales.CustomerInfo.MaxDebitLimit
    ,Sales.CustomerInfo.MaxChequeCredit
    ,Sales.CustomerInfo.PreferedPaymentMethodFK
    ,Sales.CustomerInfo.FirstBalanceKind
    ,Sales.CustomerInfo.FirstBalance
    ,Sales.CustomerInfo.Debit
    ,Sales.CustomerInfo.Credit
    ,Sales.CustomerInfo.Note
    ,Sales.CustomerInfo.FinancialPeriodFK
    ,Sales.CustomerInfo.CompanyInfoFK
    ,Sales.CustomerInfo.BlackListed
    ,Sales.CustomerInfo.IsActive
) 

SELECT Sales.CustomerInfo.CustomerInfoID
    ,FullTitle = (cast(Sales.CustomerInfo.AccountFK AS NVARCHAR) + ' - ' + Sales.CustomerInfo.FullName)
    ,Sales.CustomerInfo.TopicFK
    ,Sales.CustomerInfo.AccountFK
    ,Sales.CustomerInfo.CompanyRegNo
    ,Sales.CustomerInfo.PersonTypeFK
    ,Sales.CustomerInfo.BankAccountDetail
    ,Sales.CustomerInfo.BankAccountNo
    ,Sales.CustomerInfo.AccountNo
    ,Sales.CustomerInfo.FullName
    ,Sales.CustomerInfo.Birthdate
    ,Sales.CustomerInfo.TitleFK
    ,Sales.CustomerInfo.RegistrationDate
    ,Sales.CustomerInfo.CustomerPhotoFK
    ,Sales.CustomerInfo.SocialNo
    ,Sales.CustomerInfo.WebPage
    ,Sales.CustomerInfo.JobFK
    ,Sales.CustomerInfo.MaxDebitLimit
    ,Sales.CustomerInfo.MaxChequeCredit
    ,Sales.CustomerInfo.PreferedPaymentMethodFK
    ,Sales.CustomerInfo.FirstBalanceKind
    ,Sales.CustomerInfo.FirstBalance
    ,Sales.CustomerInfo.Debit
    ,Sales.CustomerInfo.Credit
    ,Sales.CustomerInfo.Note
    ,Sales.CustomerInfo.FinancialPeriodFK
    ,Sales.CustomerInfo.CompanyInfoFK
    ,cte.Debit1
    ,cte.Credit1
    ,cte.ResDEBIT
    ,cte.ResCREDIT
    ,Sales.CustomerInfo.BlackListed
    ,Sales.CustomerInfo.IsActive
    ,CASE 
        WHEN (ResDEBIT > ResCREDIT)
            THEN (ResDEBIT)
        WHEN (ResCREDIT > ResDEBIT)
            THEN (ResCREDIT)
        ELSE 0
        END AS Mande
    ,CASE 
        WHEN (ResDEBIT > ResCREDIT)
            THEN ('debit')
        WHEN (ResCREDIT > ResDEBIT)
            THEN ('credit')
        ELSE ('ziro')
        END AS STATUS
FROM Sales.CustomerInfo
LEFT JOIN cte ON Sales.CustomerInfo.AccountFK = cte.AccountFK

左连接不显示所有记录

1 个答案: