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Phase 6 · SQL Databases

Topics

Normalization

Part of the Backend Developer Roadmap.

Summary

The process of structuring tables to minimize data duplication and avoid update anomalies, typically described through normal forms (1NF, 2NF, 3NF).

How to Learn This

  • 1Take a denormalized spreadsheet-style table and normalize it into related tables.
  • 2Learn what problem each normal form (1NF, 2NF, 3NF) actually solves.
  • 3Understand when deliberate denormalization is a reasonable performance trade-off.

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Indexes

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Transactions

More topics in SQL Databases

Relational Database ConceptsSQL Basics (SELECT, INSERT, UPDATE, DELETE)JoinsIndexesTransactionsACID PropertiesPostgreSQLMySQLConstraints & KeysViewsStored ProceduresDatabase Design & ER DiagramsMigrations
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