Install derby-doc by entering the following commands in the terminal:
sudo apt update sudo apt install derby-doc
Description:
Apache Derby API documentation and examples
Apache Derby is an open source relational database implemented entirely in Java. . This package contains a Javadoc documenting the API and demo software for Apache Derby.
Homepage: http://db.apache.org/derby/
Version: 10.14.1.0-1ubuntu1
Section: universe/doc