使用事务 SQL 更新值并在新的 table 中插入更改

Question

我正在尝试创建一个新的历史记录 table，用于保存对 table TempLimitBook 所做的任何更新。

当执行下面的代码时，table TempLimitBookHistory (hsitorical table) 得到两条记录，即使任何值已经更新。

有没有人知道以下代码可能有什么问题？

IF EXISTS 
    (SELECT RecordId
            FROM TempLimitBook 
            WHERE RecordId = @RecordId)
BEGIN 
BEGIN TRAN
            UPDATE TempLimitBook SET 
            LimitName= @LimitName,
            LimitValue= @LimitValue,
            GCN = @GCN,
            watchListFlag = @watchListFlag,
            nextWatchListReview = @nextWatchListReview,
            TotalLimitCurrency = @TotalLimitCurrency,
            TotalLimitAmount = @TotalLimitAmount,
            totalLimitAMountSEK = @totalLimitAMountSEK,
            sTCountryLimitTLCurrency = @sTCountryLimitTLCurrency,
            sTCountryLimitSEK = @sTCountryLimitSEK,
            mTCountryLimitTLCurrency = @mTCountryLimitTLCurrency,
            mTCountryLimitSEK = @mTCountryLimitSEK,
            riskClass = @riskClass,
            accumulatedPolicyDeviationTLCurrency = @accumulatedPolicyDeviationTLCurrency,
            accumulatedPolicyDeviationSEK = @accumulatedPolicyDeviationSEK,
            transactionalPolicyDeviation = @transactionalPolicyDeviation,
            transactionalPolicyDeviationSEK = @transactionalPolicyDeviationSEK,
            forbearance = @forbearance,
            nextReviewDate = @nextReviewDate,
            country = @country,
            segment = @segment,
            profitCentre = @profitCentre,
            clientExecutive = @clientExecutive,
            accountManager = @accountManager,
            industryCode = @industryCode,
            active = @active,
            decisionMakingBody = @decisionMakingBody 
        WHERE RecordId = @RecordId

    INSERT INTO 
    TempLimitBookHistory (RecordId,LimitName,LimitValue,GCN,watchListFlag,nextWatchListReview,TotalLimitCurrency,totalLimitAmount,totalLimitAMountSEK,sTCountryLimitTLCurrency,sTCountryLimitSEK,mTCountryLimitTLCurrency,mTCountryLimitSEK,riskClass,accumulatedPolicyDeviationTLCurrency,accumulatedPolicyDeviationSEK,transactionalPolicyDeviation,transactionalPolicyDeviationSEK,forbearance,nextReviewDate,country,segment,profitCentre,clientExecutive,accountManager,industryCode,active,decisionMakingBody, LastModifiedDate, LastModifiedUser) 
    select 
    recordId,limitName,limitValue,GCN,watchListFlag,nextWatchListReview,TotalLimitCurrency,totalLimitAmount,totalLimitAMountSEK,sTCountryLimitTLCurrency,sTCountryLimitSEK,mTCountryLimitTLCurrency,mTCountryLimitSEK,riskClass,accumulatedPolicyDeviationTLCurrency,accumulatedPolicyDeviationSEK,transactionalPolicyDeviation,transactionalPolicyDeviationSEK,forbearance,nextReviewDate,country,segment,profitCentre,clientExecutive,accountManager,industryCode,active,decisionMakingBody, LastModifiedDate = CURRENT_TIMESTAMP, LastModifiedUser = SYSTEM_USER
    from TempLimitBook
COMMIT TRAN
END
ELSE

    INSERT INTO TempLimitBook (RecordId,LimitName,LimitValue,GCN,watchListFlag,nextWatchListReview,TotalLimitCurrency,totalLimitAmount,totalLimitAMountSEK,sTCountryLimitTLCurrency,sTCountryLimitSEK,mTCountryLimitTLCurrency,mTCountryLimitSEK,riskClass,accumulatedPolicyDeviationTLCurrency,accumulatedPolicyDeviationSEK,transactionalPolicyDeviation,transactionalPolicyDeviationSEK,forbearance,nextReviewDate,country,segment,profitCentre,clientExecutive,accountManager,industryCode,active,decisionMakingBody) 
    VALUES 
    (@recordId,@limitName,@limitValue,@GCN,@watchListFlag,@nextWatchListReview,@TotalLimitCurrency,@totalLimitAmount,@totalLimitAMountSEK,@sTCountryLimitTLCurrency,@sTCountryLimitSEK,@mTCountryLimitTLCurrency,@mTCountryLimitSEK,@riskClass,@accumulatedPolicyDeviationTLCurrency,@accumulatedPolicyDeviationSEK,@transactionalPolicyDeviation,@transactionalPolicyDeviationSEK,@forbearance,@nextReviewDate,@country,@segment,@profitCentre,@clientExecutive,@accountManager,@industryCode,@active,@decisionMakingBody)  
    INSERT INTO 
    TempLimitBookHistory (RecordId,LimitName,LimitValue,GCN,watchListFlag,nextWatchListReview,TotalLimitCurrency,totalLimitAmount,totalLimitAMountSEK,sTCountryLimitTLCurrency,sTCountryLimitSEK,mTCountryLimitTLCurrency,mTCountryLimitSEK,riskClass,accumulatedPolicyDeviationTLCurrency,accumulatedPolicyDeviationSEK,transactionalPolicyDeviation,transactionalPolicyDeviationSEK,forbearance,nextReviewDate,country,segment,profitCentre,clientExecutive,accountManager,industryCode,active,decisionMakingBody, LastModifiedDate, LastModifiedUser) 
    select 
    recordId,limitName,limitValue,GCN,watchListFlag,nextWatchListReview,TotalLimitCurrency,totalLimitAmount,totalLimitAMountSEK,sTCountryLimitTLCurrency,sTCountryLimitSEK,mTCountryLimitTLCurrency,mTCountryLimitSEK,riskClass,accumulatedPolicyDeviationTLCurrency,accumulatedPolicyDeviationSEK,transactionalPolicyDeviation,transactionalPolicyDeviationSEK,forbearance,nextReviewDate,country,segment,profitCentre,clientExecutive,accountManager,industryCode,active,decisionMakingBody, LastModifiedDate = CURRENT_TIMESTAMP, LastModifiedUser = SYSTEM_USER
    from TempLimitBook

END

Answer 1

在第一个翻译部分

INSERT INTO 
TempLimitBookHistory (***) 
select *    
from TempLimitBook

您不区分您要插入的特定值，您从 TempLimitBook 中插入所有内容

在最后一部分中，您获取完整的 table 并将其插入到历史记录中table 这就是你想要的吗？

INSERT INTO 
TempLimitBookHistory (*) 
select 
*
from TempLimitBook

并且您应该在更新值之前将其插入历史记录 table，否则如果您指定要插入的值，则会插入新数据。

我建议您阅读有关触发器安装的内容然后它会在您更新 table 时自动执行此操作。更新 TempLimitBook 然后将更改后的值插入 TempLimitBookHistory

使用事务 SQL 更新值并在新的 table 中插入更改

Update the values and insert the change in a new table using transactions SQL

sql

sql-server

transactions