I use OEM stand-alone and you can not do a DB Dump using OEM in stand alone mode. I have never used OEM in server mode so I am not sure if you can do this. May I ask why you want to do his via OEM instead of logging in and doing the dump?
may be this would be the easier way..
to be frank i have never taken a backup & i need to practise a lot now as i am fresher in DBA field..
I would suggest creating a script that will do the backup for you. Do you want to to a cold or a warm backup of the Database? What version of Oracle are you running? Did whoever left you in this position have a backup and restore strategy?
thanks for ur response sir..
actually i wanted to have Hot Backup & i am running Oracle 9i