XF 1.2 How to change the language for all users?


Well-known member
I guess this can be done with SQL Injection. What is the command please? I recently moved my site to XenForo from phpBB3 and even though I have select default language Slovak, most of the users have English as default. They seems to be lost and don't know where to change the language. So I wonder how could I change the language to Slovak for all users?

lat time i did this , i couldn't enter the acp and i had to re build the cashes and restore the english language .. etc
as Brogan said DO take a backup first