Home › Entities › sql_keyword › NULL

NULL

special marker and keyword in SQL indicating that something has no value
Thing sql_keyword Q371029
Press Enter · cited answer in seconds

NULL

Summary

NULL is a SQL keyword[1]. NULL ranks in the top 10% of sql_keyword entities by monthly Wikipedia readership (4,112 views/month).[2]

Key Facts

  • NULL's instance of is recorded as SQL keyword[3].
  • NULL's instance of is recorded as value[4].
  • NULL is a type of null[5].
  • NULL is part of three-valued logic[6].
  • NULL's notation is recorded as ω[7].
  • NULL's short name is recorded as {'lang': 'en', 'text': 'NULL'}[8].

Body

Definition and Type

Recorded instance of include SQL keyword[3] and value[4]. NULL is a type of null[5].

Use and Application

NULL is part of three-valued logic[6].

Why It Matters

NULL ranks in the top 10% of sql_keyword entities by monthly Wikipedia readership (4,112 views/month).[2] NULL has Wikipedia articles in 10 language editions, a strong signal of global cultural recognition.[9] NULL is known by 7 alternative names across languages and contexts.[10]

References

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

Direct Wikidata claims

  1. [3] ↑ . wikidata.org.
  2. [4] ↑ . wikidata.org.
  3. [5] ↑ . wikidata.org.
  4. [6] ↑ . wikidata.org.
  5. [7] ↑ . wikidata.org.
  6. [8] ↑ . wikidata.org.

Class ancestry

  1. [1] ↑ . Wikidata. wikidata.org.

Aggregate / graph-position facts

  1. [2] ↑ . Wikimedia Foundation. dumps.wikimedia.org.
  2. [9] ↑ . Wikidata sitelinks. wikidata.org.
  3. [10] ↑ . 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). NULL. Retrieved May 3, 2026, from https://4ort.xyz/entity/null-q371029
MLA “NULL.” 4ort.xyz Knowledge Graph, 4ort.xyz, 3 May. 2026, https://4ort.xyz/entity/null-q371029.
BibTeX @misc{4ortxyz_null-q371029_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{NULL}}, year = {2026}, url = {https://4ort.xyz/entity/null-q371029}, note = {Accessed: 2026-05-03}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): NULL — https://4ort.xyz/entity/null-q371029 (retrieved 2026-05-03)

Canonical URL: https://4ort.xyz/entity/null-q371029 · Last refreshed:

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. 3d ago · InternetArchiveBot bot · 2026-05-19 view diff on Wikidata ↗
    Instance of → SQL keyword, value
    Part of → —
    Part of → three-valued logic
    Notation → ω
    + 4 other properties edited (see Wikidata diff for full list)
    "/* wbsetclaim-update-references:1||1|2 */ [[Property:P10283]]: C203763787, Rescuing 1 sources and submitting 0 for archiving. #IABot (v2.0.9.5)"
Live feed via Wikidata EventStreams. New edits appear within minutes of being made on Wikidata.