H2 is a relational database management system supporting a subset of the SQL standard. The main programming APIs are SQL and JDBC, however the database also supports using the PostgreSQL ODBC driver by acting like a PostgreSQL server.

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

This is version 1.4.197 of h2 as needed by jameica.