Property talk:P2875

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property usage tracking category
category tracking a Wikidata property in sister projects

Represents	Wikidata property usage tracking category (Q24514938)
Has quality	complex constraint value label (Q100884525)
Data type	Item
Allowed values	subcategories of Category:Page using Wikidata data (Q15574247) (note: this should be moved to the property statements)
Example	image (P18) → Category:Pages using Wikidata property P18 (Q15907809) SBN author ID (P396) → Category:Articles with ICCU identifiers (Q18174792)
Robot and gadget jobs	DeltaBot does the following jobs: Add new claim P971:Q24514938
Tracking: usage	Category:Tipene Howard (Q98103567)
<complementary property>	category for value not in Wikidata (P3713)
See also	category for value different from Wikidata (P3709), category for value same as Wikidata (P3734)
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 By value of property Most statements Fewest statements Most sitelinks Most linked wikis Most identifiers 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 Database reports/Complex constraint violations/P2875 Database reports/Constraint violations/P2875 Map Random list
Proposal discussion	Proposal discussion
Current uses	Total 4,383 Main statement 4,381 >99.9% of uses Qualifier 2 <0.1% of uses
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[create Create a translatable help page (preferably in English) for this property to be included here]

Value type “Wikimedia category (Q4167836)”: This property should use items as value that contain property “instance of (P31)”. On these, the value for instance of (P31) should be an item that uses subclass of (P279) with value Wikimedia category (Q4167836) (or a subclass thereof). (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/P2875#Value type Q4167836, 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/P2875#Single value, SPARQL

Distinct values: this property likely contains a value that is different from all other items. (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/P2875#Unique value, SPARQL (every item), SPARQL (by value)

Inverse property of “related property (P1659)”:
if [item A] has this property (property usage tracking category (P2875)) linked to [item B],
then [item B] should also have property “related property (P1659)” linked to [item A]. (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/P2875#inverse, SPARQL

Property “category combines topics (P971): Wikidata property usage tracking category (Q24514938), value from Wikidata (Q40218570)” declared by target items of “property usage tracking category (P2875)”: If [item A] has this property with value [item B], [item B] is required to have property “category combines topics (P971): Wikidata property usage tracking category (Q24514938), value from Wikidata (Q40218570)”. (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/P2875#Target required claim P971, SPARQL

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

List of violations of this constraint: Database reports/Constraint violations/P2875#Entity types, hourly updated report

Scope is as main value (Q54828448): the property must be used by specified way only (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/P2875#Scope, SPARQL

Item “property constraint (P2302)”: Items with this property should also have “property constraint (P2302)”. (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/P2875#Item P2302, search, SPARQL

value label (1: should match regex)
fix label or adjust regex for language at Property:P2875#P1552: complex constraint value label (Q100884525) (Help)
Violations query: SELECT ?item ?lang ?l ?value ?v ?t WHERE { hint:Query hint:optimizer "None". wd:P2875 p:P1552 [ ps:P1552 wd:Q100884525 ; pq:P8770 ?t ] BIND( lang(?t) as ?lang) ?item wdt:P2875 ?value. ?item rdfs:label ?l . FILTER(lang(?l) = ?lang) ?value rdfs:label ?v . FILTER(lang(?v) = ?lang) FILTER ( !REGEX(str(?v), str(?t) ) ) } # ORDER BY ?lang ?v
List of this constraint violations: Database reports/Complex constraint violations/P2875#value label (1: should match regex)

value label (1: languages lacking a regex)
determine a regex and add it at Property:P2875#P1552: complex constraint value label (Q100884525) (Help)
Violations query: SELECT ?item ?lang (COUNT(*) as ?count) (SAMPLE(?l) as ?sample) WHERE { hint:Query hint:optimizer "None". [] wdt:P2875 ?v . ?v rdfs:label ?l . BIND(lang(?l) as ?lang) OPTIONAL { wd:P2875 p:P1552 [ ps:P1552 wd:Q100884525 ; pq:P8770 ?t ] FILTER( lang(?t) = ?lang) } FILTER( !BOUND(?t) ) ?item wdt:P424 ?lang ; wdt:P305 [] . } GROUP BY ?item ?lang HAVING ( ?count > 9) ORDER BY DESC ( ?count)
List of this constraint violations: Database reports/Complex constraint violations/P2875#value label (1: languages lacking a regex)

value-requires-statement constraint (Q21510864)

If we use category combines topics (P971) like Category:Pages using Wikidata property P54 (Q23908977)category combines topics (P971)Wikidata property usage tracking category (Q24514938) then we need another statement to this claim, and we can't add Category:Pages using Wikidata property P54 (Q23908977)category combines topics (P971)property usage tracking category (P2875).

I change it to main subject (P921). --Mr. Ibrahem (talk) 15:00, 18 September 2017 (UTC)

I created value from Wikidata (Q40218570) so we can use it in category combines topics (P971) like value different from Wikidata (Q29075121), value not on Wikidata (Q28858528), value same as Wikidata (Q29075123). --Mr. Ibrahem (talk) 15:08, 18 September 2017 (UTC)

no longer needed

As of 2019 - usage of property can be done in a more advanced way. Retire this property?EncycloABC (talk) 17:58, 16 December 2019 (UTC)