Question

我有一个sql过程，可以从表中生成一些数据。我的问题是，有时它会生成带有错误的xml，更具体地说，它会为我的一个xml添加一个额外的字符。它始终是相同的标签，如果我删除标签，它会使用前一个标签。基本上在xml的相同位置，无论标签。这是我的sql代码：

ALTER proc [dbo].[genUserVehicleXML]
@userID nvarchar(450)

as
BEGIN
declare @IMEI nvarchar(138),@totalKM decimal(16,4),@funcH decimal(16,4),                              @stayH decimal(16,4),  @totalH decimal(16,4),@dayKM decimal(16,4)

DECLARE contact_cursor CURSOR FOR  
SELECT IMEI FROM ClientsIMEI where ApplicationUserId=@userID


OPEN contact_cursor;  

 -- Perform the first fetch.  
 FETCH NEXT FROM contact_cursor
 into @IMEI;  

 -- Check @@FETCH_STATUS to see if there are any more rows to fetch.  
 WHILE @@FETCH_STATUS = 0  
 BEGIN  
 -- This is executed as long as the previous fetch succeeds. 
  select @totalKM=cast (sum(Kilometers)/cast(1000 as decimal(16,4)) as   decimal(16,4)) from Properties where IMEI=@IMEI
  select @dayKM=cast (sum(Kilometers)/cast(1000 as decimal(16,4)) as decimal(16,4)) from Properties where IMEI=@IMEI and day(Time_Stamp)=day(getdate())
  select @funcH=cast (sum(Properties.Hours)/cast(3600 as decimal(16,4)) as decimal(16,4)) from Properties where IMEI=@IMEI and EngineStatus=1 and day(Time_Stamp)=day(getdate())
  select @stayH=cast (sum(Properties.Hours)/cast(3600 as decimal(16,4)) as decimal(16,4)) from Properties where IMEI=@IMEI and EngineStatus=0 and day(Time_Stamp)=day(getdate())
  select @totalH=cast (sum(Properties.Hours)/cast(3600 as decimal(16,4)) as decimal(16,4)) from Properties where IMEI=@IMEI
  INSERT INTO dbo.XMLData
  select top 1 P.IDProperty,p.ApplicationUserId,
            P.IMEI,P.Time_Stamp,
            P.Latitude,
            P.Longitude,
            P.Speed,
            P.FuelLevel,
            P.EngineStatus,
            isnull(@dayKM,0),
            C.InitialKilometers+@totalKM,
            isnull(@funcH,0),
            isnull(@stayH,0),
            isnull(@totalH,0)+C.InitialHours,
            isnull(@totalH,0),
            P.Angle,
            P.Altitude,
            P.Satellites,
            C.IDClientsIMEI,
            C.CarNumber,
            C.DriverName,
            C.Model 
            from Properties P join ClientsIMEI C on P.IMEI=c.IMEI where   P.ApplicationUserId=@userID and P.IMEI=@IMEI  order by Time_Stamp desc 
   FETCH NEXT FROM contact_cursor into @IMEI;  
   END  



   CLOSE contact_cursor;  
   DEALLOCATE contact_cursor;   


     DECLARE @fileName NVARCHAR(1000)

     DECLARE @sqlStr VARCHAR(1000)
     DECLARE @sqlCmd VARCHAR(1000)

     SET @fileName = 'C:\gps_beta01\wwwroot\outputXML_'+ @userID +'.xml'

     SET @sqlStr = 'select [IDProperty],[ApplicationUserId], [IMEI],convert(varchar(50),cast([Time_Stamp] as datetime),20) as [Time_Stamp],[Latitude],[Longitude],
convert(numeric(16,0),cast([Speed] as float)) as Speed,convert(numeric(16,0),cast([FuelLevel] as float)) as FuelLevel,[EngineStatus],
convert(numeric(16,2),cast([Kilometers] as float))as Kilometers,[KilometersTotal],[FunctionHours],
[StationHours],[TotalHours],[TotalH],convert(numeric(16,0),cast([Angle] as float)) as Angle,convert(numeric(16,0),cast([Altitude] as float)) as Altitude,
[Satellites],[IDClientsIMEI] as [IDClients],replace([CarNumber],'' '','''') as [Number] ,[DriverName],[Model] from gpsTEST.dbo.XMLDATA for xml path (''Vehicle''), root (''Vehicles'')'


     SET @sqlCmd= 'bcp "'+ @sqlStr+'" QUERYOUT '+@fileName+' -c -t, -T -S' +  @@SERVERNAME;

      EXEC Master..xp_CmdShell @sqlCmd
      delete XMLData



      END

使用xml在线验证器检查后，这是一个带有xml的jpeg：

每次只在那个位置发生这种情况。请帮助因为我不知道发生了什么。

更新：这是与xml：https://www.dropbox.com/s/9b10s1x2l85l8lf/outputXML_ccbfcf7e-2086-41ef-9e98-ef0b0084c8f4.xml?dl=0

的链接

Answer 1

首先：这是一个非常难看的方法。根本不需要光标......解决这个基于集合的更好（也更容易！）...

但是对于你的问题：你的每次只在那个位置发生这种情况不是真的。看看你的照片：页面中间有一个1。这并没有打破任何元素名称，但是 - 显然 - XML在某种程度上被破坏了部分，而这些部分被编号。我很确定，从开始到浮动1的计数完全相同，因为从那里到2正在破坏XML元素的名称。找出，如果这些数字已包含在XML文件中......

UPDATE：

正如预期的那样你的DropBox链接指向有效的XML ...唯一不好的是换行符，它不应该在那里......看不到任何愚蠢的数字......它们会在某个地方进入你的文件......

更新2：

默认情况下，行以换行符结束。您可以找到选项列表here: Specify Field and Row Terminators (SQL Server)。使用XML-BULK-export建议使用-r或-N（但不能-t）

Answer 2

解决方案是将-r添加到bcp命令。

SET @sqlCmd= 'bcp "'+ @sqlStr+'" QUERYOUT '+@fileName+' -c  -T -r -S' +  @@SERVERNAME;

我在这里找到了解决方案：SQL Server Bcp Export XML Format

sql在xml标记中添加不需要的字符

2 个答案:

UPDATE：

更新2：