Imagine SQL as a superhero. Window functions are the clever sidekick that swoops in when queries get tricky. They let you compare data, calculate running totals, rank items, and uncover trends, without wrestling with complicated subqueries.
In this session, the sample database is Oktoberfest-themed, because what better way to explore data than with beer tents and crowds? Discover answers to questions like: Which beer tent draws the biggest crowd? How does beer consumption change over the evening? And which tent claims the top spot? With window functions, these insights become smooth and elegant, no messy queries required.
Step by step, participants will learn how to calculate cumulative sums, moving averages, and compare previous and following rows with ease. The examples are practical, directly applicable, and packed with Oktoberfest fun, without the hangover.
Whether someone is new to SQL or has years of experience, this session will make them wonder how they ever lived without window functions.