Walk away from old-fashioned and cumbersome query approaches and answer your business
intelligence questions through simple and powerful queries built on common table expressions
(CTEs) and window functions. These new features in MariaDB and MySQL help you to write queries
without having to wade through a quagmire of brittle self-joins and other crazy techniques from
the past. Your queries will generate correct results be more readable and less brittle in the
face of unexpected data and you'll be able to adapt them quickly in the face of changing
business requirements. MariaDB and MySQL Common Table Expressions and Window Functions Revealed
introduces and explains CTEs and window functions newly available in MariaDB 10.2 and MySQL
8.0 and helps you understand why and how every MariaDB and MySQL database programmer should
learn and apply these features in their daily work. CTEs and especially window functions enable
easy solutions to many query challenges that in prior releases have been difficult and
sometimes impossible to surmount. Mastering these features opens the door to query solutions
that are more robust execute faster and are easier to maintain over time than prior solutions
using older techniques. The book: Takes you step-by-step through the workings of common table
expressions and window functions Provides easy-to-follow examples of the new syntax Helps you
answer business questions faster and easier than ever What You'll Learn Answer business
questions using simple queries that don't break in the face of unexpected data Avoid writing
queries that are a difficult-to-maintain quagmire of self-joins and nested subqueries Recognize
situations that call for window functions and learn when to use these features Reduce the need
for performance-robbing self-joins Simplify and speed the execution of analytical queries
Create queries that finish in seconds instead of hours Who This Book Is For Database
administrators and application developers who want to quickly get up to speed on important
features in MariaDB and MySQL for writing business intelligence queries. Any developer writing
SQL against MariaDB and MySQL databases will benefit tremendously from the knowledge and
techniques this book provides.
