Oracle9i SQL not only prepares students for the first exam in both the Oracle Database Administrator (DBA) and Internet Application Developer Certification Tracks; it offers them a solid understanding of Oracle9i SQL and how to use it effectively. This textbook is not simply a study guide; it is written for individuals who have just a basic knowledge of databases and can be utilized in a course on this latest implementation of SQL from Oracle. A business case that follows the progress of an online book retailer, JustLee Books, runs through every chapter, and many of the examples in each chapter build on this case. In addition, hands-on activities at the end of each chapter, such as review questions, assignments, and a case project, help to reinforce Oracle9i SQL skills.