Andy Yun is a SentryOne Senior Solutions Engineer and a Microsoft MVP. He has been working with SQL Server for 15 years as both a Database Developer and Administrator. Leveraging knowledge of SQL Server Internals and extensive experience in highly transactional environments, he strives to make T-SQL leaner and meaner. Andy is extremely passionate about passing knowledge onto others, regularly speaking at User Groups, SQL Saturdays, and PASS Summit. Andy is a co-founder of the Chicago SQL Association, co-Chapter Leader of the Chicago Suburban User Group, and part of the Chicago SQL Saturday Organizing Committee.