Cecelia L. AllisonDr. Cecelia Allison'is an author, technical writer, and online professor. Her background as a software tester and technical support specialist has given her extensive hands-on experience using Structured Query Language (SQL). She wrote and facilitate online SQL courses titled “Introduction to SQL”, "Intermediate SQL" and Advanced SQL which are offered through hundreds of educational facilities, and also teaches online technical courses for Park University. She'has been using SQL for over 20 years and has taught over 100,000 students SQL worldwide.'Dr. Allison holds a Bachelor of Science in finance, a Master of Science in information systems, and a Doctor of Business Administration in management information systems. Read More Read Less