instiki/vendor/rails/railties/configs/databases/sqlite2.yml

# SQLite version 2.x
#   gem install sqlite-ruby
development:
  adapter: sqlite
  database: db/development.sqlite2
  pool: 5

# Warning: The database defined as "test" will be erased and
# re-generated from your development database when you run "rake".
# Do not set this db to the same as development or production.
test:
  adapter: sqlite
  database: db/test.sqlite2
  pool: 5

production:
  adapter: sqlite
  database: db/production.sqlite2
  pool: 5