Biographical Sketch: Robert Catterall is an IBM DB2 for z/OS specialist. He started his IT career with IBM in 1982, and worked throughout the 1990s as a member of the Company's DB2 for z/OS National Technical Support team. From 2000 to 2007, Robert worked as a database technology strategist for CheckFree (now part of Fiserv). After working for three years as an independent DB2 consultant, he rejoined IBM in 2010. Robert is a past President of the International DB2 Users Group (IDUG), a member of IDUG's Speakers Hall of Fame, and was one of IBM's inaugural Information Champions. He presents frequently at conferences, has written numerous articles for IBM Data Magazine, and blogs about DB2 for z/OS at http://robertsdb2blog.blogspot.com/.