SQL Interview Question Most Developers Get Wrong

Manish Sharma · Beginner ·📊 Data Analytics & Business Intelligence ·3w ago
Amazon asked this SQL question — and most developers get it WRONG. Here's why ⬇️ NOT IN looks right. LEFT JOIN is safe. But NOT EXISTS is the one you write in production. This SQL Short covers: ✅ Why NOT IN silently breaks on NULL values ✅ The LEFT JOIN trick that passes interviews ✅ NOT EXISTS — fastest query, cleanest code If you're preparing for a data analyst or data engineer interview, this is the SQL mistake you CANNOT afford to make. 🔔 Subscribe for daily SQL tips → https://www.youtube.com/@ManishSharma 📚 Free SQL tutorials: https://rebellionrider.com #SQLInterview #DataAnalyst #SQLTips #NotExists #LeftJoin ------------------------------------------------------------------------ ►►►LINKS◄◄◄ Blog: Previous Tutorial ► ============================= ►►►Camera Gears https://www.amazon.in/shop/manishsharma?listId=DU9UM0XL97KM&ref=idea_share_inf ►►► Work From Home Essential Tech That We Use Daily https://www.amazon.in/shop/manishsharma?listId=XAZ18JLLSNB5&ref=idea_share_inf ============================= ============================= Subscribe now for more database tutorials ============================= @RebellionRider ============================= ►►►Connect With Us ============================= https://www.instagram.com/RebellionRider/ https://www.facebook.com/TheRebellionRider/ https://twitter.com/RebellionRider https://www.linkedin.com/in/mannbhardwaj/ ============================= ►►►Books I refer to ============================= PL/SQL https://amzn.to/2QE1jX0 Performance Tuning https://amzn.to/2sgiAw4 1z0-071 Exam https://amzn.to/2sgfeJw Python Programming https://amzn.to/305UEbh ============================= ►►►AFFILIATE DISCLOSURE: ============================= Some of the links used in the description will direct you to Amazon.in. As an Amazon Associate, I earn from qualifying purchases at no additional cost to you. #RebellionRider
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