# jdbc-h2 H2 is a Java SQL database. The main features of H2 are: * Very fast, open source, JDBC API * Embedded and server modes; in-memory databases * Browser based Console application * Small footprint: around 1 MB jar file size For more information see http://www.h2database.com/ ## Usage To make the driver accessible to JDBC and ActiveRecord code running in JRuby : require 'jdbc/h2' Jdbc::H2.load_driver For backwards compatibility with older (<= **1.3.154**) versions of the gem use : require 'jdbc/h2' Jdbc::H2.load_driver(:require) if Jdbc::H2.respond_to?(:load_driver) ## Copyright Copyright (c) 2012 [The JRuby Team](https://github.com/jruby). H2 is dual licensed and available under a modified version of the MPL 1.1 (Mozilla Public License) or under the (unmodified) EPL 1.0 (Eclipse Public License). see *LICENSE.txt* and http://www.h2database.com/html/license.html for more details.