Using Postgres Window Functions
Instructor
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.
Learner Reviews
- gnadenthal5 years agoWhat would make this course a 7 for you?
Be able to bookmark a lesson and add it to a named collection for later reference.
- John6 years agoWhat did you like about this course and how will it help you?
I am lacking in postgres query knowledge and this crushed some cool features. Thank you!
Course Content
- 5
You might also like these resources:
Introduction to Cloudflare Workers
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.
Create an eCommerce Store with Next.js and Stripe Checkout
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
Practical Git for Everyday Professional Use
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.