Login problem

Hi,

I have accidentally swap site address for two domain. I can’t login now.
I want to set it back but I’m unable to login to admin in both sites. It looks like it is redirecting from one site to another. So I’m looking for file or table in database where are WordPress Address (URL) and Site Address (URL) located.
I try to change the ‘siteurl’ value in wp_options table but nothing change. Also try to change ‘home’ value but still same problem.

Are this variables located also elsewhere? Or are they stored in some file?

Thank you