In creating a New Database , you enter "db01"
The real database name: username_db01 .
This applies to both your database name and database user, your password stays normal or is not pre-pended like the name or user.
Things to keep in mind:
Your MySQL User can only be up to 7 characters long.
You also need to remember to add your MySQL User to your database after the two are created.
Database Server/Host Address:
If your script or program is going to be accessing our database locally, meaning script and database are on same account, the server/host address will always be: localhost , just like that, lowercase and one word.