Technology
The software uses an H2 database. H2 is a relational database management system (RDBMS) written in Java. H2 may be embedded in Java applications (as it is in the Jobtrac connector software) or run in client-server mode. The software is available as open source software through both the Mozilla Public License 2.0 and Eclipse Public Licenses.
References:
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H2 project home page:
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H2 downloads:
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H2 connection modes (including embedded and server):
http://www.h2database.com/html/features.html#connection_modes
Other database technologies (such as Oracle, MySQL, PostgreSQL) would be usable with additional development.