H2 is an SQL database engine written in Java that implements the JDBC API. Embedded, server, and clustering modes are available. A browser based console application is included. The database has strong security features. Disk based and in-memory databases and tables are supported.

Changes

Large updates were made to use less memory. Google Android is now supported. The performance of large CSV operations has been improved. A patch for Apache DDL Utils is available. H2 has been translated to Brazilian Portuguese. Problems with GROUP_CONCAT, CSV field delimiters, nested temporary views, and the cluster mode have been fixed.

URL: H2 Database Engine