Newbie question.

I set up a rails app to use postrges locally, which took me awhile.

Of course I had to fill in the database.yml file with the database details, but I was doing that in the manner of a mechanical zombie, just typing in what I thought would work without understanding why I was doing it.

What I don't understand is whether the database was created with the rails app when I executed `rails new myProject`, or if the database was created independently during the postrgres installation and then connected to by the app.

The result is that I'm not sure whether, upon creating a second app with `rails new mySecondProject`, I need to go and somehow create a second database for it to connect to, or whether it does that on its own and the info I put in the database.yml file is just to give it access to my local.....postgres program....or something like that.

Is this making sense??