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YouTubeKodeKloud
Slow Database Interview Question
Your query takes 30 seconds. What's your move? 🤔 If you said "upgrade the server" — you just failed the interview. The real answer? Diagnose before you spend. A slow join across four tables is almost never a RAM problem. It's a missing index. It's N+1 queries hiding in your app code. It's SELECT * pulling columns you never asked for ...
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