How to reinstall database?

[Alia]

Greetings, friends

Sooo, in the process of royally screwing up an upgrade, I seem to have lost my forums, threads, users, etc. 

Fortunately, I backed it up, and it exists in php my admin. 

But how do I get those files back into my forum? Right now it's like I have a fresh install and there is zip, zero, nada, left over of the old forum.

Many thinks for your help!

Alia

[.m.]

database backup needs to be imported into server through phpMyAdmin.
in general,
empty database needs to be created & database backup can be imported into it

database needs to be connected through config.php file [config.php guidance]

depending on your earlier forum version, you may have to upgrade forum.

if any critical files are missing then they might be shown while trying
to access the forum / forum admin panel. you can upload such missed files.

[Alia]

Thank you, .M. that worked perfectly!