Using Postgres Window Functions
Brett Cassette
In this course we will show you how to wield the power behind the elusive window function. Which five movies were the highest grossing each year? Who are the highest performers in each department relative to their peers? These questions ask us to partition records into subgroups and answer questions about those groups -- that’s the power of a window function.
Many programmers will reach for their favorite scripting language to solve problems like these, but window functions allow you to answer them with the speed and efficiency of the Postgres query planner.
Plus, with the power to further slice and dice this derivative information, there’s no limit to the questions you can answer with raw SQL.
If you’re interested in the Postgres client that is used in this course you can download it here to check it out and follow along.
Course Content
- 5
You might also like these resources:
Become familiar with the Workers CLI wrangler that we will use to bootstrap our Worker project. From there you'll understand how a Worker receives and returns requests/Responses. We will also build this serverless function locally for development and deploy it to a custom domain.
This is a practical project based look at building a working e-commerce store using modern tools and APIs. Excellent for a weekend side-project for your developer project portfolio
git is a critical component in the modern web developers tool box. This course is a solid introduction and goes beyond the basics with some more advanced git commands you are sure to find useful.