H2 is an SQL database engine written in Java thatimplements the JDBC API. Embedded, server, andclustering modes are available. A browser basedconsole application is included. The database hasstrong security features. Disk based and in-memory databases and tables are supported.
License: Mozilla Public License (MPL)
Changes:
The tool DeleteDbFiles sometimes deleted files of other databases. LIKE and IN(..) did not always work inside a sub-query. User defined aggregate functions did not always work. MySQL compatibility has been improved. Foreign key constraints with mixed case column names did not work. In JaQu, the maximum length of a column can now be set.
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