You see I personally still think this would be useful or at least a guide on how to export the necessary data via phpmyadmin and how to then inject it into another database.

Take my scenario for instance. I have a live site and a staging site, now there are parts I need to keep seperate and most of the final work is on the staging site, now all I have left is to import the updated forum data that has changed since the clone of the live site was taken at the beginning of the development, so I just need to import all the data from the live forum to my staging forum and then once done I will push my staging site live and this means my staging site will completely overwrite my live site. 

Any advice for that?

Thanks in advance.