is written and implemented completely in the Java programming language. provides users with a small-footprint standards-based database engine that can be tightly embedded into any Java based solution. ensures data integrity and provides sophisticated transaction support. In the default configuration there is no separate database server to be installed or maintained by the end user. For more information on , visit the Web site at http://db.apache.org/derby.

Before you install , you should understand the deployment options and system requirements.