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What is normalization?

Updated May 17, 2026

Short answer

Normalization organizes data to reduce redundancy.

Deep explanation

It divides tables into smaller related tables to avoid duplication.

Real-world example

E-commerce database design.

Common mistakes

  • Over-normalization leading to too many joins.

Follow-up questions

  • What are normal forms?
  • When to denormalize?

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