SQL is a declarative language, meaning the user submits an SQL command and the database determines the optimal execution. Common Table Expressions (CTEs) allow queries to be more imperative, allowing looping and processing hierarchical structures that are normally associated only with imperative languages. This talk will help developers use implement CTE queries in their applications and allow operations that normally could only be done in application code to be done via SQL queries.
slides: Programming the SQL Way with CTE
Bruce Momjian is a co-founder of the PostgreSQL Global Development Group, and has worked on PostgreSQL since 1996. He is the author of PostgreSQL: Introduction and Concepts, published by Addison-Wesley. Bruce is employed by EnterpriseDB. Previously, he was employed by SRA Japan and Great Bridge LLC, both PostgreSQL support companies. He has spoken at many international open-source conferences. Prior to his involvement with PostgreSQL, Bruce worked as a consultant, developing custom database applications for some of the world’s largest law firms. As an academic, Bruce was a high school computer science teacher for five years, holds a Masters in Education, and is an adjunct professor at Drexel University.