mySQL question

I'm just starting to use PHP with mySQL, and I have a few basic questions. I've successfully created a mySQL database on my local machine, was able to create tables and populate them (from the command line), query it with php from the browser, etc - no problems there. Now I need to create one on a remote server. 1) Since I have access to the ftp, is that login/pass valid for the mysql database? if not, is there a location where this information (l/p to mySQL) is stored? 2) Are there concrete files in mySQL? For example, can i create the database i want from my local machine and then upload it? where are they located? this is the most puzzling to me - i don't understand how these databases seem to exist in thin air... 3) How do i go about getting that command line setting, the one that i use to create tables and add things and whatever on my local machine, on a remote server? do they have to have telnet enabled? 4) what is phpmyAdmin? could this help my situation? any help would be greatly appreciated.... -Doug