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Stay tuned for new information about QED licensing.

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.

Finally, for developers who want to embed QED in their Java applications, QED is available with an affordable single-price license. No more "counting seats" for run-time licenses. You can deploy unlimited copies of your application with a single QED license!

The Quadcap Web Server shows how an embedded database can be used to implement distributed solutions, using the ubiquitous web browser as user interface. The server provides a single, self-administering platform for easy JSP/JDBC development and deployment.

QWS is a powerful servlet engine, and one of the fastest implementing Java Servlets Specification, Version 2.2. QWS also supports JavaServer Pages (JSP), implementing the JSP 1.0 Specification.

QED + Quadcap Web Server is perfect for rapid development of web-based applications, and is ideal for environments where minimizing database administration overhead is critical.

Included with this QWS release are several sample applications, including a simple bug-tracking application and a simple image database application.