This book simplifies the concepts of SQL, enabling anyone to quickly grasp the fundamentals of SQL. Each chapter includes examples, important notes and key terms. Additionally, this book highlights many key differences in SQL script used in a number of different database management system platforms and tests your comprehension of each chapter using quizzes and assignments. After completion of this book, you should feel confident using SQL in any relational database environment. Cecelia L. Allison is originally from St. Petersburg, Florida. She is a freelance Web master and also works as an author/facilitator instructing students on Structured Query Language (SQL) over the Internet through universities, colleges, and other educational facilities around the world. Cecelia has been using SQL for many years. Through her past and present employment she has gained extensive experience in writing and implementing SQL. She holds a Bachelor of Science degree in Finance and a Master of Science degree in Computer Information Systems.