Daffodil DB - Version 4.0 Daffodil DB is a J2EE-certified, JDBC 3.0 and SQL 99 compliant Java database. It has been designed to handle complex computing environments that demand a robust, scalable and high-performance RDBMS that can operate across platforms. Daffodil DB comes with support for PHP, User Defined Functions, Scalar Functions, Triggers, MVCC and many other enterprise level features.