This book is about developing Java/J2EE applications with a database component in Oracle JDeveloper (version 10.1.3). It covers the practical aspects of JDBC (version 4.0); it will teach application developers about setting the environment for developing various JDBC-based J2EE applications and the procedure to develop JDBC-based J2EE applications. It will also explore the new features added in JDBC 4.0 Data retrieval and storage is one of the most common components of J2EE applications. JDBC (Java Database Connectivity) is the Java API for accessing a SQL relational database and adding, retrieving, and updating data in the database. The book is suitable for Java/J2EE and Oracle JDeveloper beginners. Most J2EE applications have a database component and the book is specially suited for database-based J2EE development in Oracle JDeveloper. Users can also use this book to learn how to utilize the new features offered in JDBC 4.0 for Java/J2EE development.