I bet this is possible, but I am not (yet) brave enough to try.
I have a problem with a site such that I can see neither front-end nor access wp-admin from a browser.
Server support people are helpful but slow - could be suhosin, maybe not - whatever...
It occurred to me that one way to test this quickly would be to revert to another theme, but of course I can't access wp-admin to change via dashboard.
So - is it possible to change theme directly from phpMyAdmin.
If so - where do I go ? and what do I do ?