RDDB 是一個(gè) Ruby 開發(fā)的面向文檔的數(shù)據(jù)庫(kù)系統(tǒng)，其靈感來(lái)自 CouchDB。

示例代碼：

  # First create an database object
  database = Rddb::Database.new

  # Put some documents into it
  database << {:name => 'John', :income => 35000}
  database << {:name => 'Bob', :income => 40000}
  database << {:name => 'Jim', :income => 37000}

  # Create a view that will return the names
  database.create_view('names') do |document, args|
    document.name
  end

  # The result of querying will return an array of names
  assert_equal ['John','Bob','Jim'], database.query('names')