HSQLDB 2.3.2

Currently the leading SQL relational database engine written in java is HyperSQL. It was even selected as SourceForce project of the month for January 2012. Not only does it deliver fast and powerful multithreaded and transactional database engines, it also provides disk-based tables. HyperSQL has support for the widest range of standard SQL features. IT also includes a powerful command line tool, along with GUI query tools. This program has constantly been worked on and developed for over 12 years now, it's database has over 1700 open sources software projects. It's also free of charge and distribute under their licenses.

Key Features of HyperSQL:

• Small and fast, while still avoiding using resources
• Wide range of SQL standard features supported
• 12 years of development in the making
• Completely free to use and distribute
• Currently the leader in its field
• Highly functional with a ton of flexibility and speed
• Written in java
• Supports high 2PL and MVCC performance