Configuring the databases:

Now, we have to configure the three databases regarding ROR. The 
configuration file is database.yml already available in the 
C:\ruby\organics\config subdirectory of "organics" Rails Application created. 
Open this file and set the username and password in each of the sections
(here the password is "the_password"):

development:
  adapter: mysql
  database: organics_development
  username: root
  password: the_password
  host: localhost
test:
  adapter: mysql
  database: organics_test
  username: root
  password: the_password
  host: localhost
production:
  adapter: mysql
  database: organics_production
  username: root
  password: the_password
  host: localhost