Primary Key vs Secondary Key – Quick TL;DR

Hussein Nasser dives into what sets a primary key apart from a secondary key and why that distinction can seriously boost (or tank) your database performance. Think of a primary key as your table’s VIP pass—unique, mandatory, and lightning-fast for lookups—while secondary keys are your helpful sidekicks for extra query flexibility but might slow things down if overused.

On top of the tech talk, Hussein’s got your back with ways to support his channel (PayPal, YouTube memberships), links to his courses and playlists (backend engineering, database deep dives), plus a peek at all the camera and audio gear he uses. Perfect if you’re nerding out on both code and production quality!

Watch on YouTube