Primary Key vs Secondary Key – TL;DR

Hussein Nasser breaks down the key differences between primary and secondary database keys, showing how each impacts query performance, indexing strategies, and overall system efficiency. Expect clear examples, practical tips, and a focus on how choosing the right key can speed up your reads and writes.

Alongside the lecture, he shares ways to support his work (PayPal, YouTube membership), links to his courses, video playlists (backend and database engineering), a podcast, and even a roundup of the gear he uses. Stay tuned for hands-on insights and comfy affiliate recommendations!

Watch on YouTube