1、讀取Xml文件，方法是使用OPENXML，具體參考：https://www.cnblogs.com/JuneZhang/p/5146392.html
Xml文件：
SQL:
DECLARE @idoc int --定義一個指向Xml節點路徑的指針
DECLARE @xml xml
SELECT @xml=bulkcolumn FROM OPENROWSET( BULK 'D:\ReadWriteXML\FTPInfos.xml', SINGLE_BLOB) AS x --打開一個Xml
SELECT @xml
EXEC sp_xml_preparedocument @idoc OUTPUT, @xml
SELECT *
FROM OPENXML (@idoc, '/FTPInfos/FTPInfo',0) --參數定義看上邊的參考鏈接
WITH (UserName nvarchar(30) ,
Password nvarchar(20),
Id nvarchar(20),
FileNameStart nvarchar(20) '/FTPInfos/FTPInfo/Download/@FileNameStart',
FileExtension nvarchar(20) '/FTPInfos/FTPInfo/Download/@FileExtension',
FTPPath nvarchar(20) '/FTPInfos/FTPInfo/Download/@FTPPath',
LocalTempDir nvarchar(20) '/FTPInfos/FTPInfo/Download/@LocalTempDir',
LocalTargetDir nvarchar(20) '/FTPInfos/FTPInfo/Download/@LocalTargetDir',
LocalBackupDir nvarchar(20) '/FTPInfos/FTPInfo/Download/@LocalBackupDir',
FileType nvarchar(20) '/FTPInfos/FTPInfo/Download/ServiceDisplay/@FileType',
Remark nvarchar(20) '/FTPInfos/FTPInfo/Download/ServiceDisplay/@Remark',
Enabled nvarchar(20) '/FTPInfos/FTPInfo/Download/ServiceControl/@Enabled',
CronExpression nvarchar(20) '/FTPInfos/FTPInfo/Download/ServiceControl/@CronExpression',
ThreadCount nvarchar(20) '/FTPInfos/FTPInfo/Download/ServiceControl/@ThreadCount'
)
SELECT *
FROM OPENXML (@idoc, '/FTPInfos/FTPInfo',0)
WITH (UserName nvarchar(30) ,
Password nvarchar(20),
Id nvarchar(20),
FileNameStart nvarchar(20) '/FTPInfos/FTPInfo/Upload/@FileNameStart',
FileExtension nvarchar(20) '/FTPInfos/FTPInfo/Upload/@FileExtension',
FTPTargetPath nvarchar(20) '/FTPInfos/FTPInfo/Upload/@FTPTargetPath',
FTPTempPath nvarchar(20) '/FTPInfos/FTPInfo/Upload/@FTPTempPath',
LocalSourceDir nvarchar(20) '/FTPInfos/FTPInfo/Upload/@LocalSourceDir',
LocalBackupDir nvarchar(20) '/FTPInfos/FTPInfo/Upload/@LocalBackupDir',
FileType nvarchar(20) '/FTPInfos/FTPInfo/Upload/ServiceDisplay/@FileType',
Remark nvarchar(20) '/FTPInfos/FTPInfo/Upload/ServiceDisplay/@Remark',
Enabled nvarchar(20) '/FTPInfos/FTPInfo/Upload/ServiceControl/@Enabled',
CronExpression nvarchar(20) '/FTPInfos/FTPInfo/Upload/ServiceControl/@CronExpression',
ThreadCount nvarchar(20) '/FTPInfos/FTPInfo/Upload/ServiceControl/@ThreadCount'
)
EXEC sp_xml_removedocument @idoc --釋放指針
以上就是讀取附件Xml的SQL,讀取到的Download和Upload會保存到兩個表，這里就不做insert了。
備注：因為數據庫是服務器的，所以讀取的xml的絕對路徑也是服務器的,字段定義根據需求來。
2、輸出Xml到服務器物理路徑下，這里隨便找了個表生成了一個Xml.參考：https://www.cnblogs.com/biwork/p/3431257.html
做法是使用XP_CMDSHELL+BCP寫出的SQL執行的：
EXEC sp_configure 'show advanced options', 1
GO
RECONFIGURE
GO
EXEC sp_configure 'xp_cmdshell', 1
GO
RECONFIGURE
GO
EXEC XP_CMDSHELL 'BCP "SELECT(SELECT Id as ''student/@studentID'',Code ''student/@studentName'',Name ''student/teacher/@teacherID'',ParameterValue ''student/teacher/@teacherName'',Description ''student/teacher/Address/@teacherAddress'', Id as ''student1/@studentID'',Code ''student1/@studentName'',Name ''student1/teacher/@teacherID'',ParameterValue ''student1/teacher/@teacherName'',Description ''student1/teacher/Address/@teacherAddress'' FROM [Xxx.Module].[dbo].[SysParameter] FOR XML path(''FTPInfo''),TYPE, ELEMENTS ,ROOT(''FTPInfos''))AS XML_Order " QUERYOUT "D:\text.xml" -c -T -x' --注：這段SQL，如果用的是查詢語句，必須放在一行，換行會報錯，不知道為什么，如果查詢SQL太長可以寫個存儲過程，然后放進來,類似於下邊注釋的這種
--DECLARE @Sqlcmd NVARCHAR(max)
--SET @Sqlcmd='EXEC master.sys.xp_cmdshell ''bcp "EXEC Demo.dbo.p1" queryout E:\hqdst\'+ CONVERT(VARCHAR(10),GETDATE(),112)+REPLACE(CONVERT(VARCHAR(8),GETDATE(),8),':','')+'.xml -c -q -T'''
--EXEC(@Sqlcmd)
EXEC sp_configure 'show advanced options', 1
GO
RECONFIGURE
GO
EXEC sp_configure 'xp_cmdshell', 0
GO
RECONFIGURE
GO
結果：