HSQLDB - 100% Java Database
HSQLDB 1.8 has been included with OpenOffice.org since OOo 2.0 (2005), providing users with an integrated SQL database engine. It is also included with LibreOffice. Current release versions of both OpenOffice.org and LibreOffice include a version of HSQLDB 1.8.0.x.
Over a period of 18 months, HSQLDB 2.x was integrated into the development code for OpenOffice.org in cws hsqldb19 (a code branch of OOo Base). This was a collaboration between OpenOffice.org and HSQLDB developers and the snapshots releases have been tested by volunteers. As of April 2011, this development branch was ready to be released as part of OpenOffice version 3.4 or 3.5 and is compatible with the latest HSQLDB 2.2.x.
We will collaborate with LibreOffice and Apache OpenOffice to integrate the latest 2.x version of HSQLDB.
It is already possible to use HSQLDB 2.x as an external embedded or client-server database with both OpenOffice.org and LibreOffice. This configuration is currently the choice of many users with large or network-shared databases. Thanks to the OOo community, information on how to use HSQLDB 2.x with the current versions of OpenOffice.org and LibreOffice is widely available. One starting point is here:
In February 2005 we launched an appeal for funding to complete the development of HSQLDB 1.8.0 for integration with OpenOffice.org Base. Many individual users and user groups contributed to this appeal and enabled the release of 1.8.0, which was included with OpenOffice.org 2.0.
individual contributions by country code - AT: 2 , AU: 10 , BE: 2 , BH: 1 , CA: 4 , CH: 5 , DE: 13 , DK: 3 , ES: 3 , FR: 6 , GR: 4 , HU: 1 , IN: 1 , IT: 5 , JP: 1 , MX: 1 , NL: 2, NO: 4 , PH: 1 , PL: 1 , PT: 3 , SG: 1 , UK: 19 , US: 39