最近需要用到 pure ruby database ，现在整理一下

纯种ruby的数据库KirbyBase

http://www.netpromi.com/kirbybase_ruby.html

KirbyBase For Ruby

中文手册的翻译进行中，已有了一定的规模

http://e2c.91yee.com/posts/show/145


RDDB is a Ruby document-oriented database system inspired by CouchDB and developed by Anthony Eden. If you're familiar with CouchDB, the whole system should make sense from the start, but if not, read on. You can create a database and insert documents in a simple enough way:

http://www.rubyinside.com/rddb-restful-ruby-document-oriented-database-643.html