Ruby on Rails and Oracle

This is mine:

development:
  adapter: oracle
  database: 127.0.0.1/XE
  username: myapp_dev
  password: changeme

All of these look odd to me. How is your Oracle networking set up? Do you have a tnsnames.ora file? For ‘database’, I use the connection name from my tnsnames.ora file.

foo_dev:
adapter: oracle
database: PROD

username: foo
password: foopass