This is the only book you need to learn SQL. This book contains everything you need to know to write efficient SQL queries, backup and restore database and create database diagrams. This is a hands on tutorial in SQL which takes you from Novice to Professional. There is no prerequisite for this course except the desire to learn and practice. People with little or no knowledge of SQL will quickly gain command of SQL Programming and will have the knowledge of an SQL Programmer with years of experience. After completing this book you may even consider a career change. All sample code is provided on my web site.