Jeffrey David Ullman is the Stanford W. Ascherman Professor of Computer Science (Emeritus) and he is currently the CEO of Gradiance. His research interests include database theory, data mining, and education using the information infrastructure. He is one of the founders of the field of database theory, and was the doctoral advisor of an entire generation of students who later became leading database theorists in their own right. He was the Ph.D. advisor of Sergey Brin, one of the co-founders of Google, and served on Google's technical advisory board. Ullman was elected to the National Academy...