Where should I find the WP database?

Hi,

These are silly questions, I messed up with my localhost WP, on an attempt to move it to live server:

I am trying to move WP from localhost to live site condition. After I changed the URL on setting WP Dashboard, from http://127.0.0.1:8080/wordpress, to my domain url, now I cannot get back to my localhost wp-admin, and I cannot find the database WP on my PhpMyAdmin to export it to the site server. My questions would be:

1. How to change back URL on Setting WP Dashboard to http://127.0.0.1:8080/wordpress?
2. Where should I find the WP database?

Thank you.

Regards. Agus