I have moved hosts now and have installed a new version on Piwik on mydomain.com/analytics
Can I move my old Piwik data to my new Piwik installation, if so - how? Is it just a matter of exporting my old Piwik DB and importing this to my new Piwik DB, overwriting old data?
you can only have one DB, so either use the new one, or you can “move the previous one” then go to Piwik which will upgrade that old DB to the newest schema.