Sql 如何从查询结果生成Sp_send_dbmail附件字符串

我需要为查询中的每个结果附加一个文件，可以是单个结果，也可以是10。使用Microsoft SQL server 2012

示例：从列_x=22的表格中选择ItemNumber：

结果:

125487

25645124

)

选择@attachment=STUFF@attachment, 1, 1, ; - 删除首字母

结束

Declare @path nvarchar(255);
Set @path = 'C:\Users\Public\Documents\'

Declare @attachment nvarchar(255);
  Set @attachment = @path + result1 + '.txt' + ',' + @path + result2 + '.txt'

CREATE Procedure [dbo].[GetItems]
@TransNumber INT,
 @attachment nvarchar(MAX)  OUTPUT
AS 

 Begin

 DECLARE @path nvarchar(255);
 SET @path = 'C:\Users\Public\Documents\WineCards\';
 set @attachment = ''


 SELECT @attachment += CONCAT(';', @path, 'wn', ItemLookupcode, '.pdf')
 FROM TransactionEntry
 Left Join Item on TransactionEntry.ItemID = Item.ID
 WHERE TransactionEntry.TransactionNumber=@TransNumber and         dbo.fn_FileExists(CONCAT(@path, 'wn', ItemLookupcode, '.pdf') )=1
 Group by Itemlookupcode