如何在SQL Server中回滚或提交事务
在我的存储过程中，我有三个插入语句。
在重复键值插入前两个查询生成错误
违反PRIMARY KEY约束
第三个查询像往常一样运行。
现在我想，如果任何查询产生任何exception，一切都应该回滚。
如果没有任何查询产生任何exception，它应该被提交。
declare @QuantitySelected as char set @QuantitySelected = 2 declare @sqlHeader as varchar(1000) declare @sqlTotals as varchar(1000) declare @sqlLine as varchar(1000) select @sqlHeader = 'Insert into tblKP_EstimateHeader ' select @sqlHeader = @sqlHeader + '(CompanyID,CompanyName,ProjectName,EstimateID,EstimateHeader,QuoteDate,ValidUntil,RFQNum,Revision,Contact,Status,NumConfigurations) ' select @sqlHeader = @sqlHeader + ' select CompanyID,CompanyName,ProjectName,EstimateID,EstimateHeader,QuoteDate,ValidUntil,RFQNum,Revision,Contact,Status,NumConfigurations ' select @sqlHeader = @sqlHeader + 'from V_EW_Estimate_Header where EstimateID = 2203' select @sqlTotals = 'Insert into tblKP_Estimate_Configuration_Totals ' select @sqlTotals = @sqlTotals + '(ConfigRecId,RecId,SellQty,ConfigNum,ConfigDesc,SortOrder,OptionsInMainPrice,MarkupPctQty,' select @sqlTotals = @sqlTotals + ' SellPriceQty,RubberStamp,OptPriceQty,StatusRecid,LastUpdate_Date,LastUpdate_User,TotalCost,QuantityBracketSelected)' select @sqlTotals = @sqlTotals + ' select ConfigRecId,RecId,SellQty' + @QuantitySelected + ',ConfigNum,ConfigDesc,SortOrder,OptionsInMainPrice' select @sqlTotals = @sqlTotals + ' ,MarkupPctQty' + @QuantitySelected + ',SellPriceQty' + @QuantitySelected + ',RubberStamp,OptPriceQty' + @QuantitySelected + ',StatusRecid,LastUpdate_Date,LastUpdate_User,TotalCost' + @QuantitySelected + ',' + @QuantitySelected select @sqlTotals = @sqlTotals + ' from v_EW_Estimate_Configuration_Totals where ConfigRecId = -3' select @sqlLine = 'Insert into tblKP_Estimate_Configuration_Lines' select @sqlLine = @sqlLine + '(MstrRfqRecId,RfqRecId,RfqLineRecId,CompanyId,VendorQuoteNum,LineGrp,LineNum,StatusRecId,' select @sqlLine = @sqlLine + ' LineDesc,LineSize,LineMatl,LineDeco,LineFinish,CopyFromRecId,PerPieceCost,IsOptional,' select @sqlLine = @sqlLine + ' CopyToNewRev,RecId,UnitPrice,LineQty,LinePrice,CustOrVend,SellQty1,RfqNum,ConfigLineIsOptional,ConfigLinePerPieceCost,ConfigLineRecid,SellPrice,SaleQty)' select @sqlLine = @sqlLine + ' select distinct MstrRfqRecId,RfqRecId,RfqLineRecId,CompanyId,VendorQuoteNum,LineGrp,LineNum,' select @sqlLine = @sqlLine + ' StatusRecId,LineDesc,LineSize,LineMatl,LineDeco,LineFinish,CopyFromRecId,PerPieceCost,IsOptional,' select @sqlLine = @sqlLine + ' CopyToNewRev,RecId,UnitPrice' + @QuantitySelected + ',LineQty' + @QuantitySelected + ', isnull(LinePrice' + @QuantitySelected + ', 0.0000),CustOrVend,SellQty' + @QuantitySelected + ',RfqNum,ConfigLineIsOptional,ConfigLinePerPieceCost,ConfigLineRecid,SellPrice' + @QuantitySelected + ',SaleQty' + @QuantitySelected select @sqlLine = @sqlLine + ' from v_EW_EstimateLine where rfqlinerecid in (select RfqLineRecID from kp_tblVendorRfqConfigLine where ConfigRecID = -3) ' exec( @sqlHeader) exec(@sqlTotals) exec(@sqlLine) 好消息是SQL Server中的一个事务可以跨越多个批处理（每个exec被视为一个单独的批处理）。
您可以将您的EXEC语句包装在BEGIN TRANSACTION和COMMIT但是如果出现任何错误，您需要更进一步并回滚。
理想情况下，你会想要这样的事情：
BEGIN TRY BEGIN TRANSACTION exec( @sqlHeader) exec(@sqlTotals) exec(@sqlLine) COMMIT END TRY BEGIN CATCH IF @@TRANCOUNT > 0 ROLLBACK END CATCH
BEGIN TRANSACTION和COMMIT我相信你已经很熟悉了。 BEGIN TRY和BEGIN CATCH块基本上可以捕捉和处理发生的任何错误。 如果您的任何EXEC语句出现错误，代码执行将跳转到CATCH块。
您现有的SQL构build代码应该在事务之外（上面），因为您始终希望尽可能缩短事务处理时间。
