> For the complete documentation index, see [llms.txt](https://mariadb.com/docs/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://mariadb.com/docs/general-resources/database-theory/database-normalization.md).

# Database Normalization

- [Database Normalization: 1st Normal Form](https://mariadb.com/docs/general-resources/database-theory/database-normalization/database-normalization-1st-normal-form.md)
- [Database Normalization: 2nd Normal Form](https://mariadb.com/docs/general-resources/database-theory/database-normalization/database-normalization-2nd-normal-form.md)
- [Database Normalization: 3rd Normal Form](https://mariadb.com/docs/general-resources/database-theory/database-normalization/database-normalization-3rd-normal-form.md)
- [Database Normalization: 4th Normal Form](https://mariadb.com/docs/general-resources/database-theory/database-normalization/database-normalization-4th-normal-form.md)
- [Database Normalization: 5th Normal Form and Beyond](https://mariadb.com/docs/general-resources/database-theory/database-normalization/database-normalization-5th-normal-form-and-beyond.md)
- [Database Normalization: Boyce-Codd Normal Form](https://mariadb.com/docs/general-resources/database-theory/database-normalization/database-normalization-boyce-codd-normal-form.md)
- [Database Normalization Overview](https://mariadb.com/docs/general-resources/database-theory/database-normalization/database-normalization-overview.md)
- [Understanding Denormalization](https://mariadb.com/docs/general-resources/database-theory/database-normalization/understanding-denormalization.md)