Biographical Sketch: Bill Schray is a Consulting IT Specialist with IBM Advanced Technical Skills (ATS), located in Tampa. He has over 25 years of technical experience, including large systems and databases. He has worked with customers on DB2 for MVS, OS/390®, and z/OS for more than 20 years, and has specialized in SQL performance, and related topics for the past 15 years. Bill has worked on a wide variety of DB2 performance issues and DB2 health checks across North America and overseas.