Rake error


Hope you can help, new to this.

Installed Radiant everything seems to be installed as per the
installation guide.

However when i go to the next step to rake the database it does the

rake db:bootstrap

Rake aborted!
unknown database ‘example_development’

i do understand the the name of the database need to be place in the
database.yml file.

I am using mysql, how do you create the database?

Thanks in advance