Biographical Sketch: Dr. Guogen (Gene) Zhang is a Distinguished Engineer in DB2 for z/OS development at IBM Silicon Valley Lab. He is the chief architect and development lead responsible for the delivery of pureXML and SQL query technology in DB2 for z/OS, and has delivered important functionality including pureXML, complex queries and analytics features in DB2 for z/OS. He is a frequent speaker in many conferences, such as IOD and IDUG, and has been deeply involved in providing solutions to customers using pureXML.