Create db for Account

db/migrate/004_create_accounts.rb

 class CreateAccounts < ActiveRecord::Migration
   def self.up
-    create_table :accounts do |t|
-      # t.column :name, :string
+    create_table (:accounts,
+		  :options => 'ENGINE=InnoDB DEFAULT CHARSET=utf8') do |t|
+      t.column :name, :string
     end
   end