Derby is a lightweight relational database implemented completely in Java. Using the JDBC driver provided, Derby can be embedded in any Java applications.
In 1997, Cloudscape Inc., a start-up in Oakland, California, developed a database engine called JBMS, which was later renamed as Cloudscape. From 1999 to 2001, Cloudscape was acquired first by Informix Software, and by IBM, and its name was changed to IBM Cloudscape. In 2004, IBM contributed the code to the Apache Software Foundation as Derby. In 2005, Derby became a Apache DB subproject.
JBMS, Cloudscape, Java DB