Using H2 SQL on JRuby RAILS 2.35
h2/bin $ java -cp h2-1.2.124.jar org.h2.tools.Server -baseDir /data/dbdir

development:
  adapter: jdbch2
  driver: org.h2.Driver
  database: /dbdir/dev
  hostname: localhost
  username: sa
  password:
  url: jdbc:h2:tcp://localhost/dbdir/dev