This book is step-by-step tutorial guide and a background reference for developing applications with Oracle WebLogic Server and Oracle database, the most used application server and database for enterprise applications. This book is for professional Java EE developers. The book is also suitable for an intermediate/advanced course in Java development with Eclipse IDE. Some knowledge of the Java EE technologies and frameworks EJB, JSF, JAXB, JAX-WS, JAX-RS, Ajax, and Spring is required.