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third normal form

normalizing a database design to reduce the duplication of data and ensure referential integrity
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third normal form

Summary

third normal form is a database normalisation[1]. It has Wikipedia articles in 14 language editions, a strong signal of global cultural recognition.[2]

Key Facts

  • third normal form is credited with the discovery of Edgar F. Codd[3].
  • third normal form's instance of is recorded as database normalisation[4].
  • third normal form's time of discovery or invention is recorded as 1971[5].
  • third normal form's generalization of is recorded as second normal form[6].

Body

Definition and Type

third normal form's instance of is recorded as database normalisation[4].

Why It Matters

third normal form has Wikipedia articles in 14 language editions, a strong signal of global cultural recognition.[2] It is known by 15 alternative names across languages and contexts.[7]

Related Entities

Edgar F. Codd

References

Programmatic citations — every numbered marker resolves to a verifiable graph row below.

Direct Wikidata claims

  1. [4] ↑ . wikidata.org.
  2. [3] ↑ . wikidata.org.
  3. [5] ↑ . wikidata.org.
  4. [6] ↑ . wikidata.org.

Class ancestry

  1. [1] ↑ . Wikidata. wikidata.org.

Aggregate / graph-position facts

  1. [2] ↑ . Wikidata sitelinks. wikidata.org.
  2. [7] ↑ . Wikidata aliases. wikidata.org.

📑 Cite this page

Use these citations when quoting this entity in research, articles, AI prompts, or wherever provenance matters. We aggregate Wikidata + Wikipedia + authoritative open-data sources; the stitched, scored, cross-referenced view is what 4ort.xyz contributes.

APA 4ort.xyz Knowledge Graph. (2026). third normal form. Retrieved May 3, 2026, from https://4ort.xyz/entity/third-normal-form
MLA “third normal form.” 4ort.xyz Knowledge Graph, 4ort.xyz, 3 May. 2026, https://4ort.xyz/entity/third-normal-form.
BibTeX @misc{4ortxyz_third-normal-form_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{third normal form}}, year = {2026}, url = {https://4ort.xyz/entity/third-normal-form}, note = {Accessed: 2026-05-03}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): third normal form — https://4ort.xyz/entity/third-normal-form (retrieved 2026-05-03)

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Edit History

Rolling log of changes to this entity's Wikidata record. Values shown reflect the current state of each edited property — follow the history link to see the precise diff for any edit.

  1. 26d ago · HelloImSteven · 2026-06-09 view diff on Wikidata ↗
    Instance of → database normalisation
    Generalization of → second normal form
    Instance of → —
    Discoverer or inventor → Edgar F. Codd
    + 2 other properties edited (see Wikidata diff for full list)
    "/* wbsetclaim-create:1||1 */ [[Property:P12946]]: 3NF, import FOLDOC ID ([[:toollabs:editgroups/b/wikibase-cli/4a1600b576016/|details]])"
Live feed via Wikidata EventStreams. New edits appear within minutes of being made on Wikidata.