This week I finished my Joomla 3.0/Marvikshop 3.0 website. Problem my old website is still running, so there are 2 databases... How to copy the database fast?
1. Always backup! and close your old webshop
2. Copy your old Marvikshop database tables to the new database
3. Upgrade your tables with the attachement.
4. Remove and reupload the configuration and configuration_group table from your new Joomla 3.0 website you just made.
5. Happy shopping!