install step1

where can i get the database username, database password, database name when I install the opencart to local host?

http://localhost/opencart_v0.7.8/install/index.php  here requires Database Username Database Password Database Name. someone help me thanks

try 0.7.9 RC5 instead.

aside from trying 0.7.9....
you get the database info from yourself. you need to set up your database with your hosting provider and setup a login. then put that info into opencart so it knows how to read and write your store data

That I can answer because I broke my opencart few times, need to uninstall and reinstall. 

You need to use cPanel to create MySQL Database from there you get the Username and User Password. They're normally same.