--1、啟用xp_cmdshell
USE master
EXEC sp_configure 'show advanced options', 1
RECONFIGURE WITH OVERRIDE
EXEC sp_configure 'xp_cmdshell', 1
RECONFIGURE WITH OVERRIDE
EXEC sp_configure   'show advanced options', 0
RECONFIGURE WITH OVERRIDE

--2、使用變量進(jìn)行備份
declare @db sysname
declare @dbpath varchar(120)
set @db='shenyin'
--文件名根據(jù)數(shù)據(jù)庫(kù)名稱＋日期YYYYMMDD+擴(kuò)展名
set @dbpath='D:\'+@db+convert(varchar(10),getdate(),112)+'.bak'

--3、在sql中建個(gè)映射
exec master..xp_cmdshell 'net use Y: \\192.168.0.156\DBBackup "jindou" /user:192.168.0.156\Administrator'
/*
 說(shuō)明:
 Y:是映射網(wǎng)絡(luò)路徑對(duì)應(yīng)本機(jī)的盤符
 192.168.0.156是我本機(jī)的IP
 DBBackup是我本機(jī)共享的文件夾
 Administrator是登陸的用戶名 
 "jindou" 是Administrator用戶的密碼
*/
--4、備份（@db是要備份的數(shù)據(jù)庫(kù)名稱）
Backup Database @db To disk=@dbpath
--5、COPY
declare @copypath varchar(200)
set @copypath = 'copy '+@dbpath+' Y:'
select @copypath
exec master..xp_cmdshell @copypath 
--6、刪除（這句可以去掉）
declare @deletepath varchar(200)
set @deletepath = 'del '+@dbpath
select @deletepath
exec master..xp_cmdshell @deletepath 
--7、完成后刪除映射
exec master..xp_cmdshell 'net use Y: /delete'

--8、關(guān)閉xp_cmdshell
USE master 
EXEC sp_configure 'show advanced options', 1 
RECONFIGURE WITH OVERRIDE 
EXEC sp_configure 'xp_cmdshell', 0 
RECONFIGURE WITH OVERRIDE 
EXEC sp_configure   'show advanced options', 0
RECONFIGURE WITH OVERRIDE