sqlserver实现网络备份
exec master..xp_cmdshell 'net use y: 共享文件夹 密码 /user:webfw\administrator'
backup database nzsyb to disk='y:\aa.bak'
exec master..xp_cmdshell 'net use y: /delete'
backup database nzsyb to disk='y:\aa.bak'
exec master..xp_cmdshell 'net use y: /delete'