数据库 备份 压缩

--打开XP_CMDShell命令

-- To allow updates.

EXEC sp_configure 'allow updates', 0

GO

-- To allow advanced options to be changed.

EXEC sp_configure 'show advanced options', 1

GO

-- To update the currently configured value for advanced options.

RECONFIGURE

GO

-- To enable the feature.

EXEC sp_configure 'xp_cmdshell', 1

GO

-- To update the currently configured value for this feature.

RECONFIGURE

GO



declare @database_name varchar(100)

declare @bakname varchar(100)

declare @bakfile varchar(100)

declare @rarfile varchar(100)

declare @rarcmd varchar(256)



declare dbname cursor for select name from sys.databases where database_id > 4--游标取所有数据库名  

open dbname  

FETCH NEXT FROM dbname INTO @database_name  

  

WHILE (@@FETCH_STATUS = 0)  

begin  

	set @bakfile = 'F:\backup\'

	set @rarfile = 'F:\backup\'

	set @bakname = @database_name+cast(Year(GetDate()) as varchar(4))+cast(Month(GetDate()) as varchar(2))+cast(Day(GetDate()) as varchar(2))

	set @bakfile = @bakfile + @bakname + '.bak' 

	set @rarfile = @rarfile + @bakname + '.rar' 

	BACKUP DataBASE @database_name TO DISK = @bakfile WITH INIT , NOUNLOAD , NAME = @bakname, NOSKIP , STATS = 10, NOFORMAT 



	set @rarcmd ='C:\Progra~1\WinRAR\WinRAR.exe a -sv- -v4481m'+@rarfile+' '+@bakfile //分卷压缩

	exec master..xp_cmdshell @rarcmd



	FETCH NEXT FROM dbname INTO @database_name  

end  

  

CLOSE dbname  

DEALLOCATE dbname  





--关闭XP_CMDShell命令

-- To allow advanced options to be changed.

EXEC sp_configure 'show advanced options', 1

GO

-- To update the currently configured value for advanced options.

RECONFIGURE

GO

-- To enable the feature.

EXEC sp_configure 'xp_cmdshell', 0

GO

-- To update the currently configured value for this feature.

RECONFIGURE

GO