Many database developers today do not have a Computer Science degree and may also have begun their career developing software using procedural programming languages (Java, C#, etc.). As a result, they may not have the background needed to conceptualize solutions in terms of sets of data and therefore may not be able to develop efficient set-based queries. In this session, we will review the basics of set theory, relational algebra and how they apply to database development to turn cursors, loops, and other procedural programming practices into efficient set-based operations that make the most use of a relational database engine.