Question

查询1：

  SET @sql2 = 'insert into TempReport   
  select ID, max(TransactionTime),0 from  ClubTransaction with (nolock)  
  where ClubcardID in (select ClubcardID from TempCC)   
  and ClubcardTransaction.OfferID  not in (119,120,121)  
  group by ClubcardID' 
  exec (@Sql2)

查询2：

  delcare @OfferID varchar(50)
  set   OfferID='1,112,445,'  
  SET @sql2 = 'insert into TempReport   
  select ID, max(TransactionTime),0 from  ClubTransaction with (nolock)  
  where ClubcardID in (select ClubcardID from TempCC)   
  and ClubcardTransaction.OfferID not in (Select Item From dbo.fnSplit(@OfferID,'','')   
  group by ClubcardID'    
  exec (@Sql2)

查询1工作正常。在query2中，我将替换为我定义的变量de，其中我传递给函数fnSplit，其中我用逗号分隔值拆分值。我收到错误消息Must declare the scalar variable "@OfferID"。请告诉我这里的问题在哪里。

Answer 1

您必须从外部输入值并替换“by”：

查询2：

  declare @OfferID varchar(50)
  set   OfferID='1,112,445,'  
  SET @sql2 = 'insert into TempReport   
  select ID, max(TransactionTime),0 from  ClubTransaction with (nolock)  
  where ClubcardID in (select ClubcardID from TempCC)   
  and ClubcardTransaction.OfferID not in (Select Item From dbo.fnSplit(' + replace(convert(varchar(4000), @OfferID), '''', '''''') + ',"","")   
  group by ClubcardID'    

  exec (@Sql2)

另一个解决方案（以及更好的解决方案）是使用sp_executesql

请注意，动态SQL是一种进行sql注入的方法，你应该避免使用它..

使用动态查询时出现语法问题

1 个答案: