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selection

in relational algebra, unary operation that denotes a subset of a relation
Thing general Q7447725
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Summary

selection is known by 12 alternative names across languages and contexts.[1]

Key Facts

  • selection is a type of unary operation[2].
  • selection is a type of relational algebra operation[3].
  • selection is part of relational algebra[4].

Body

Definition and Type

Recorded subclass of include unary operation[2] and relational algebra operation[3].

Use and Application

selection is part of relational algebra[4].

Why It Matters

selection is known by 12 alternative names across languages and contexts.[1]

References

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

Direct Wikidata claims

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

Aggregate / graph-position facts

  1. [1] ↑ . Wikidata aliases. wikidata.org.

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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). selection. Retrieved October 14, 2026, from https://4ort.xyz/entity/selection-q7447725
MLA “selection.” 4ort.xyz Knowledge Graph, 4ort.xyz, 14 Oct. 2026, https://4ort.xyz/entity/selection-q7447725.
BibTeX @misc{4ortxyz_selection-q7447725_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{selection}}, year = {2026}, url = {https://4ort.xyz/entity/selection-q7447725}, note = {Accessed: 2026-10-14}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): selection — https://4ort.xyz/entity/selection-q7447725 (retrieved 2026-10-14)

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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. 15d ago · MsynBot bot · 2026-10-03 view diff on Wikidata ↗
    Subclass of → unary operation, relational algebra operation
    Imported from → —
    Wikidata description → in relational algebra, unary operation that denotes a subset of a relation
    Freebase id → /m/07yzf6
    + 5 other properties edited (see Wikidata diff for full list)
    "/* wbeditentity-update:0| */ add badge sitelink to redirect to enwiki sitelink; see [[Wikidata:Sitelinks to redirects]] for details #msynbotTask10"
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