Great Mistake Installing WordPress!

Hello everyone,
I am still new to all thisinstallation stuffs.

While I was trying to install word press blog on my domain I mistakingly install it this directory
MySQL database: fadvee_wrdp1 and MySQL user: fadvee_wrdp1.

My question now is how what will be the imlication of this in the search engine, and how can
I correct this great error of my?

Any usefull advice or suggestions is welcome.