Join Hussein Nasser as he unpacks the oft-overlooked difference between a primary key—which enforces uniqueness and directly identifies each row—and a secondary key, which acts as an index to speed up queries without guaranteeing uniqueness. You’ll learn how picking the right key impacts insert/update speed, query performance, and overall database efficiency.
Along the way he shares links to support his work (PayPal, YouTube membership), his courses and podcasts on backend and database engineering, plus the gear he uses to produce his videos—so you can level up your skills (and maybe your home studio) while diving deeper.
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