NOT NULL Constraint Explained ❌ | Stop Missing Data in SQL
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NOT NULL Constraint Explained ❌ | Stop Missing Data in SQL
Missing values can break reports, logics, and validations ⚠️ That’s why NOT NULL is critical in database design. The NOT NULL constraint: Forces every row to have a value Prevents empty / missing data Improves data quality Works perfectly with DEFAULT values Use it for required fields like names, emails, IDs, and more 💡 📌 Save this ...
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