He has taught databases for Digital Equipment Corporation nationally and internationally as well as for the Wall Street Journal. He is the author of Que's Special Edition Using SQL Server 6.5 1st edition and video training for Applied Learning and Essential Resources. He has progressed along with databases from network to the current relational databases and the new in-memory and NoSQL databases including as Hadoop. Bob currently teaches Microsoft SQL Server and Oracle database courses and an Emerging Technologies for the Internet and Cloud course.