sql server异地备份数据库

--注意：异地备份数据库，需要先开启备份文件夹的网络共享，数据库选择master

--打开允许执行xp_cmdshell 
EXEC sp_configure 'xp_cmdshell',1

exec master..xp_cmdshell 'net use \192.168.0.139DatabaseBackup password /user:192.168.0.139administrator'

backup database myDatabase to disk='\192.168.0.139DatabaseBackupmyDatabase_04_05.bak' with init

exec master..xp_cmdshell 'net use \192.168.0.139DatabaseBackup /delete'

--关闭允许执行xp_cmdshell 
EXEC sp_configure'xp_cmdshell', 0

如果提示无权限错误，请先执行以下脚本，注意数据库要选master

EXEC sp_configure 'show advanced options', 1
GO
RECONFIGURE WITH OVERRIDE
GO

备份数据库存储过程

USE [master]
GO
/****** Object:  StoredProcedure [dbo].[Pr_BackupDatabase]    Script Date: 04/05/2014 21:23:32 ******/
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
-- =============================================
-- Author:         王再华
-- Create date:    2014.04.05
-- Description:    备份数据库服务器的所有数据库到映射文件夹
-- =============================================
ALTER PROCEDURE [dbo].[Pr_BackupDatabase]

AS
BEGIN
    SET NOCOUNT ON;

declare @TargetIP varchar(20)
declare @backup varchar(20)
declare @username varchar(20)
declare @password varchar(20)

set @TargetIP='192.168.1.139' --要备份到的服务器IP地址
set @backup='myDatabase'          --共享文件夹
set @username='administrator' --用户名
set @password='password'--密码

--1.打开允许执行xp_cmdshell 
EXEC sp_configure 'xp_cmdshell',1


declare @sql1 varchar(2000)
set @sql1='master..xp_cmdshell ''net use \'+@TargetIP+''+@backup+' '+@password+' /user:'+@TargetIP+''+@username+''''
--2.建立共享关系 exec master..xp_cmdshell 'net use \192.168.0.139DatabaseBackup password /user:192.168.0.139administrator'
exec(@sql1) 

declare @sql varchar(2000)

/*************************** 循环备份数据库 START ***************************/

declare my_cursor cursor scroll dynamic 
for
select name from sysdatabases

open my_cursor
declare @name sysname
fetch next from my_cursor into @name
while(@@fetch_status=0)
begin
  if(@name<>'master' and @name<>'model' and @name<>'msdb' and @name<>'tempdb' and @name<>'ReportServer' and @name<>'ReportServerTempDB')
     begin
          --3.执行备份
          --backup database myDatabase to disk='\192.168.0.139DatabaseBackupmyDatabase_04_05.bak' with init
          set @sql='backup database '+@name+' to disk=''\'+@TargetIP+''+@backup+''+@name+'_'+CONVERT(varchar(100), GETDATE(), 23)+'.bak'' with init'
          exec(@sql)    
     end
  fetch next from my_cursor into @name
end
fetch first from my_cursor into @name

close my_cursor
deallocate my_cursor


/*************************** 循环备份数据库 END ***************************/
declare @sql2 varchar(2000)
set @sql2='master..xp_cmdshell ''net use \'+@TargetIP+''+@backup+' /delete'''
--4.删除共享关系 exec master..xp_cmdshell 'net use \192.168.1.222ackup /delete'
exec(@sql2)


--5.关闭允许执行xp_cmdshell 
EXEC sp_configure'xp_cmdshell', 0


END