# ... inside resource:db namespace ...
    task :init => :environment do
      desc "Creates a resource"
      new_database = ENV["NEW_DATABASE"]
      ActiveRecord::Base.connection.create_database(new_database)
      ActiveRecord::Base.connection.execute(%Q[GRANT ALL PRIVILEGES ON #{new_database}.* TO '#{ENV["USERNAME"]}'@'%' IDENTIFIED BY '#{ENV["PASSWORD"]}'])
      ActiveRecord::Base.establish_connection(
        :adapter  => "mysql",
        :host     => ENV["HOST"],
        :username => ENV["USERNAME"],
        :password => ENV["PASSWORD"],
        :database => new_database
      )
      Rake::Task["resource:db:migrate"].invoke
    end

# ... on the command line ...

rake resource:db:init RAILS_ENV=resource HOST=localhost DATABASE=integrated_development USERNAME=example PASSWORD=secret NEW_DATABASE=resouce_abs23