I don't know much about godaddy.
But if your host control panel is cpanel.
It usually has a option for backups. In the menu is a restore option also. That will create a Mysql database from a gzip file.
This option is not in phpmyadmin but a separate option for making backups of the whole site.
It works quite well in cpanel at least.
I think you are looking for trouble to try and delete some of the data.
