Property talk:P4876

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• Current uses
• Statistics by class
• Units
• Scale of values
• List of qualifiers
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number of records
number of values of an identifier or records in a catalog

Data type	Quantity
Domain	data set (Q1172284), Wikidata property for an identifier (Q19847637), controlled vocabulary (Q1469824), encyclopedia (Q5292), dictionary (Q23622), database (Q8513), Wikidata qualifier (Q15720608), MediaWiki website (Q15633582), Wikidata property related to classification schemes (Q108566342), ranked list (Q80793969) or version, edition or translation (Q3331189)
Allowed values	0 ≤ 𝓧 ≤ 1E161 ≤ 𝓧 ≤ 1,000,000,000,000
Allowed units	not applicable
Example	GRID (Q27768150) → 85,582 GRID ID (P2427) → 85,582
See also	data size (P3575), expected completeness (P2429), number of parts of this work (P2635), collection or exhibition size (P1436), amount cataloged (P7328)
Lists	Items with the most statements of this property Count of items by number of statements (chart) Items with the most statements Items with the fewest statements Count of items by number of sitelinks (chart) Items with the most sitelinks Items with the most sitelinks, but no link to one Wikipedia (sample: Welsh Wikipedia, cywiki) Items with the fewest sitelinks Most linked wikis Items with the most identifier properties Items with no other statements Most recently created items Items with novalue claims Items with unknown value claims Usage history (total) Usage history (main statement) Chart by item creation date Minimum and maximum Items with highest numeric value Items with lowest numeric value User:Laboramus/Units/P4876 (Units used) Database reports/Constraint violations/P4876 Map Random list
Proposal discussion	Proposal discussion
Current uses	Total 4,861 Main statement 4,851 99.8% of uses Qualifier 9 0.2% of uses Reference 1 <0.1% of uses

[create Create a translatable help page (preferably in English) for this property to be included here]

Type “data set (Q1172284), Wikidata property for an identifier (Q19847637), controlled vocabulary (Q1469824), encyclopedia (Q5292), dictionary (Q23622), database (Q8513), Wikidata qualifier (Q15720608), MediaWiki website (Q15633582), Wikidata property related to classification schemes (Q108566342), ranked list (Q80793969), version, edition or translation (Q3331189)”: item must contain property “instance of (P31)” with classes “data set (Q1172284), Wikidata property for an identifier (Q19847637), controlled vocabulary (Q1469824), encyclopedia (Q5292), dictionary (Q23622), database (Q8513), Wikidata qualifier (Q15720608), MediaWiki website (Q15633582), Wikidata property related to classification schemes (Q108566342), ranked list (Q80793969), version, edition or translation (Q3331189)” or their subclasses (defined using subclass of (P279)). (Help)

Exceptions are possible as rare values may exist. Exceptions can be specified using exception to constraint (P2303).
List of violations of this constraint: Database reports/Constraint violations/P4876#Type Q1172284, Q19847637, Q1469824, Q5292, Q23622, Q8513, Q15720608, Q15633582, Q108566342, Q80793969, Q3331189, SPARQL

Range from “0” to “1e+16”: values should be in the range from “0” to “1e+16”. (Help)

List of violations of this constraint: Database reports/Constraint violations/P4876#Range, hourly updated report

Units: “novalue”: value unit must be one of listed. (Help)

Exceptions are possible as rare values may exist. Exceptions can be specified using exception to constraint (P2303).
List of violations of this constraint: Database reports/Constraint violations/P4876#Units

Integer: values should be integers (ie. they shouldn't have a fractional part) (Help)

List of violations of this constraint: Database reports/Constraint violations/P4876#integer, hourly updated report, SPARQL

Scope is as main value (Q54828448), as qualifier (Q54828449): the property must be used by specified way only (Help)

List of violations of this constraint: Database reports/Constraint violations/P4876#Scope, hourly updated report, SPARQL

Required qualifier “point in time (P585)”: this property should be used with the listed qualifier. (Help)

Exceptions are possible as rare values may exist. Exceptions can be specified using exception to constraint (P2303).
List of violations of this constraint: Database reports/Constraint violations/P4876#mandatory qualifier, SPARQL

Single value: this property generally contains a single value. (Help)

Exceptions are possible as rare values may exist. Exceptions can be specified using exception to constraint (P2303).
List of violations of this constraint: Database reports/Constraint violations/P4876#Single value, SPARQL

Range from “1” to “1000000000000”: values should be in the range from “1” to “1000000000000”. (Help)

Exceptions are possible as rare values may exist. Exceptions can be specified using exception to constraint (P2303).
List of violations of this constraint: Database reports/Constraint violations/P4876#Range

Citation needed: the property must have at least one reference (Help)

Exceptions are possible as rare values may exist. Exceptions can be specified using exception to constraint (P2303).
List of violations of this constraint: Database reports/Constraint violations/P4876#citation needed

Allowed entity types are Wikibase property (Q29934218), Wikibase item (Q29934200): the property may only be used on a certain entity type (Help)

Exceptions are possible as rare values may exist. Exceptions can be specified using exception to constraint (P2303).
List of violations of this constraint: Database reports/Constraint violations/P4876#Entity types

Item “expected completeness (P2429)”: Items with this property should also have “expected completeness (P2429)”. (Help)

Exceptions are possible as rare values may exist. Exceptions can be specified using exception to constraint (P2303).
List of violations of this constraint: Database reports/Constraint violations/P4876#Item P2429, SPARQL

Qualifiers “point in time (P585), sourcing circumstances (P1480), language of work or name (P407), applies to part (P518), expected completeness (P2429), reason for preferred rank (P7452), subject has role (P2868), nature of statement (P5102)”: this property should be used only with the listed qualifiers. (Help)

Exceptions are possible as rare values may exist. Exceptions can be specified using exception to constraint (P2303).
List of violations of this constraint: Database reports/Constraint violations/P4876#allowed qualifiers, SPARQL

This property is being used by: d:Template:TR genea prop, d:Template:Property stat en:Template:Infobox bibliographic database ta:வார்ப்புரு:Infobox bibliographic database sl:Predloga:Infopolje Bibliografska podatkovna zbirka zh-min-nan:Pang-bô͘:Infobox bibliographic database te:మూస:Infobox bibliographic database th:แม่แบบ:Infobox bibliographic database shn:ထႅမ်းပလဵတ်ႉ:Infobox bibliographic database nan:Pang-bô͘:Infobox bibliographic database ne:ढाँचा:Infobox bibliographic database Please notify projects that use this property before big changes (renaming, deletion, merge with another property, etc.)

Use for Wikipedia?

Can we use this for the number of articles on items about Wikipedia language versions?
--- Jura 08:03, 7 March 2018 (UTC)

@Jura1: I'd rather use number of parts of this work (P2635). --Marsupium (talk) 08:17, 13 June 2018 (UTC)

Use as qualifier for Stack Exchange tag (P1482)?

@Jura1, Marsupium: WikiProject Properties has more than 50 participants and couldn't be pinged. Please post on the WikiProject's talk page instead.

Hi! I want to add this as qualifier to Stack Exchange tag (P1482) to state that (see https://www.wikidata.org/wiki/Q2539#P1482):

• machine learning (Q2539) has tag https://stats.stackexchange.com/tags/machine-learning with:
  • number of records: 19,909
  • point in time: 10 September 2023
  • applies to part: question (as opposed to answer, user)

So I've added to this prop:

• property scope constraint
  • property scope
    • as main value
    • as qualifier

Do you agree in general?

And another question: I get a warning that "point in time" cannot be applied to Stack Exchange tag (P1482).

• And that's correct: here "point in time" and "applies to part" are sub-qualifiers (qualifiers to the qualifier, not to the main snak).
• Wikidata doesn't support such complex constructs, and I'd rather not create a sub-object for "Machine Learning on stats.stackexchange.com"
• So do you agree with this slight twisting of the semantics?

Vladimir Alexiev (talk) 15:50, 9 October 2023 (UTC)