Quadcap Embeddable Database

QED is a Pure Java database that features: Pure Java: a high performance, small footprint, zero-administration database, perfect for embedding with your application. A full set of RDBMS features: transactions, data integrity, failure recovery, comprehensive SQL 92 conformance plus many SQL3 features. Support for JDBC 2.0 Open source, free software! No license fees, no restrictions! QED`s pure Java engine provides very high performance, since database accesses can be performed locally, without the necessity of a network round trip for every operation. Conventional JDBC drivers, no matter how fast the back-end database, incur network overhead -- frequently the bottleneck in a database application. A configurable in-memory Cache also helps Boost performance by reducing disk operations. QED is designed for applications which need full database functionality without administrative overhead of a typical database. Because of its small memory/disk footprint, QED can be embedded in end-user applications for which a database would otherwise not be practical.