Primary Key vs Unique Key💀 Almost every beginner says they're the same. They're not…
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YouTubeMohammad Rahmatullah
Primary Key vs Unique Key💀 Almost every beginner says they're the same. They're not…
Primary Key vs Unique Key 💀 Almost every beginner says they're the same. They're not. Both prevent duplicates, but only one controls NULL values differently 👀 Interviewers love this question because it tests fundamentals. In this reel, I explained: Primary Key vs Unique Key NULL behavior Real database examples 🚀
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