How do you find NULL values in SQL? #sql #null
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How do you find NULL values in SQL? #sql #null
🧠 SQL MCQ: How do you find NULL values in SQL? A) WHERE column = NULL B) WHERE column IS NULL C) WHERE column != NULL D) WHERE column NOT NULL 📌 Explanation: In SQL, NULL represents an unknown or missing value. To check for NULL, use IS NULL — not = NULL, which won’t work. 🧪 Example: SELECT * FROM users WHERE email IS NULL; 🎯 ...
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Codefinity | Online Courses on Instagram: "Master SQL in under 60 seconds — follow for the full series! NULL in SQL doesn’t mean zero — it means unknown or missing data. And it won’t behave like normal values. In this quick tutorial you’ll learn: ✅ Why = NULL doesn’t work ✅ How to use IS NULL to find missing values ✅ How to use IS NOT NULL to exclude them Understanding NULL is key for clean, reliable queries. 💡 👉 Follow our page to keep learning SQL step by step. 👉 Want hands-on practice? Fin
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