设置密码保护SqlServer数据库备份文件！ 

备份SqlServer数据库 
Backup Database [数据库] To disk='c:mysql'+ replace(replace(replace(replace(CONVERT(varchar, getdate(), 121),'-',''),' ',''),':',''),'.','') +'.bak' With Password = '123',init; 
恢复SqlServer数据库 
Restore Database [数据库] From disk=数据库备份文件地址 With Password = '123';