Gives background in Oracle's implementation of the SQL language. Each chapter is divided into labs, with objectives, examples, and exercises on specific tasks and questions that are designed to help readers discover important aspects of the SQL language. Exercises build knowledge step by step by introducing relational database concepts, the SQL*Plus environment, and the SQL language. Labs also include explained answers, multiple-choice review questions, and critical thinking questions. Morrison works in Internet development. Rischert is co-chair of Columbia University's Database Application Development and Design track at the Computer Technology and Application Program.