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

Read-only databases in zip (or jar) files are now supported. File access is now done using an extensible API. Descending indexes are supported. H2 Console has been translated to Russian. Backward searching is implemented. A new option "cache" (the number of pre-allocated numbers) is available for sequences. Converting a decimal number to an integer now rounds like MySQL and PostgreSQL. The MVCC (multi version concurrency control) mode has been improved.

URL: H2 Database Engine