--完整备份,每周一次USE MasterGOdeclare @str varchar(100)set @str='D:\Weldon\DBBACK\FullBak'+replace(replace(replace(convert(varchar,getdate(),20),'-',''),' ',''),':','')+'.bak'BACKUP DATABASE [demo] TO DISK=@strWITH RETAINDAYS=15,NOFORMAT,NOINIT,NAME=N'Demo完…