Primary Key vs Secondary Key – TL;DR

This video breaks down the difference between primary and secondary keys in databases and shows how choosing the right one can seriously boost your performance. Along the way, Hussein Nasser shares links to support his work—PayPal, YouTube membership—and points you to his in-depth courses, playlists, and podcast on backend and database engineering.

He also gives a behind-the-scenes look at the gear that makes his content awesome, from Canva for slides to the Shure SM7B mic, Focusrite interface, Canon M50 Mark II camera, and all the cables and capture cards in between. Stay inspired and level up your setup!

Watch on YouTube