Dan Cruikshank has been an IT professional since 1972 and an IBM employee since 1998. He has served in several capacities in both operations and programming, many application migrations from various platforms to the IBM System i family. Since 1993, he has been focused primarily on resolving System i application and system performance issues at several IBM customer accounts. In 1999, he also took on the role of instructor for the IBM DB2 UDB for iSeries SQL Optimization Workshop.