Built a site locally on Wordpress - how do I transfer to the web host?

Built a site locally on Wordpress - how do I transfer to the web host?

I built a site for my friend locally on my computer using WAMP and
downloading Wordpress. My friend already has his domain and web host on
GoDaddy. Once I'm all finished, how do I go about transferring everything
to his web host? Do I have to manually create a database on GoDaddy that's
exactly like the one locally? Or is there a way to "upload" a MySQL
database onto the web host? Also, does anything change in regards to the
path of the files and the path of the database columns?
Please let me know everything I have to do as this is my first time doing
this.