Property talk:P1800

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Wikimedia database name
identifier for a Wikimedia project database

Data type	External identifier
Domain	According to this template: Wikimedia project (Q14827288) According to statements in the property: Wikimedia project (Q14827288), Wikimedia chapter wiki (Q118646238), Wikimedia thematic organisation wiki (Q118646240), Wikimedia user group wiki (Q118646239), Wikimania (Q483279) or Wikimedia special project (Q33120885) When possible, data should only be stored as statements
Allowed values	([a-z_]{2,16}|wikimania20[01]\d)wik(i|tionary|ibooks|inews|iquote|isource|ivoyage|iversity|imedia)|
Example	English Wikipedia (Q328) → enwiki Armenian Wikipedia (Q1975217) → hywiki Min Nan Wikipedia (Q3239456) → zh_min_nanwiki Russian Wikisource (Q15634506) → ruwikisource MediaWiki.org (Q15633578) → mediawikiwiki Spanish Wikinews (Q21281270) → eswikinews Wikidata (Q2013) → wikidatawiki Chewa Wikipedia (Q8561552) → nywiki
Source	According to this template: [1], dbname parameter, ips_site_id, Sitelink statistics According to statements in the property: https://www.wikidata.org/w/api.php?action=sitematrix When possible, data should only be stored as statements
Formatter URL	https://dumps.wikimedia.org/$1
Robot and gadget jobs	боты использующие свойство imported from Wikimedia project (P143) / bots used imported from Wikimedia project (P143)
See also	Wikimedia language code (P424)
Lists	WMF projects Wikipedia versions 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 external identifier 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/Constraint violations/P1800 Map Random list
Proposal discussion	Proposal discussion
Current uses	Total 1,048 Main statement 1,036 98.9% of uses Qualifier 8 0.8% of uses Reference 4 0.4% of uses
Search for values

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

Single best value: this property generally contains a single value. If there are several, one would have preferred rank (Help)

List of violations of this constraint: Database reports/Constraint violations/P1800#single best value, hourly updated report, SPARQL

Distinct values: this property likely contains a value that is different from all other items. (Help)

List of violations of this constraint: Database reports/Constraint violations/P1800#Unique value, hourly updated report, SPARQL (every item), SPARQL (by value)

Format “([a-z2_]{2,16}|wikimania20[01]\d)wik(i|tionary|ibooks|inews|iquote|isource|ivoyage|iversity|imedia)|”: value must be formatted using this pattern (PCRE syntax). (Help)

List of violations of this constraint: Database reports/Constraint violations/P1800#Format, hourly updated report, SPARQL

Item “instance of (P31): Wikibooks language edition (Q22001316), Wikinews language edition (Q20671729), Wikipedia language edition (Q10876391), Wikiquote language edition (Q22001361), Wikisource language edition (Q15156455), Wikiversity language edition (Q22001390), Wikivoyage language edition (Q19826567), Wiktionary language edition (Q22001389), Wikimedia chapter wiki (Q118646238), Wikimedia thematic organisation wiki (Q118646240), Wikimedia user group wiki (Q118646239), Wikimedia private wiki (Q33120923), Wikimedia content project (Q33120876), abandoned project (Q21514702), Wikimedia fishbowl wiki (Q33120921), Wikimedia special project (Q33120885)”: Items with this property should also have “instance of (P31): Wikibooks language edition (Q22001316), Wikinews language edition (Q20671729), Wikipedia language edition (Q10876391), Wikiquote language edition (Q22001361), Wikisource language edition (Q15156455), Wikiversity language edition (Q22001390), Wikivoyage language edition (Q19826567), Wiktionary language edition (Q22001389), Wikimedia chapter wiki (Q118646238), Wikimedia thematic organisation wiki (Q118646240), Wikimedia user group wiki (Q118646239), Wikimedia private wiki (Q33120923), Wikimedia content project (Q33120876), abandoned project (Q21514702), Wikimedia fishbowl wiki (Q33120921), Wikimedia special project (Q33120885)”. (Help)

List of violations of this constraint: Database reports/Constraint violations/P1800#Item P31, hourly updated report

Item “official website (P856)”: Items with this property should also have “official website (P856)”. (Help)

List of violations of this constraint: Database reports/Constraint violations/P1800#Item P856, hourly updated report, SPARQL

Item “language of work or name (P407)”: Items with this property should also have “language of work or name (P407)”. (Help)

Exceptions are possible as rare values may exist. Exceptions can be specified using exception to constraint (P2303). Known exceptions: Wikimedia Netherlands (Q2406378), Wikimedia Ukraine‎ (Q4110961), Wikimedia Norge (Q6985258), Wikimedia UK (Q7999857), Wikimedia Eesti‎ (Q12379207), Wikimedia Macedonia (Q12905543), Wikimedia Sverige (Q15279144), Wikimedia Canada (Q15627703), Wikimedia Belgium (Q18398868), Wikimedia Denmark (Q18559647), Wikimedia Mexico (Q18559782), Wikimedia Finland (Q18559868), Wikimedia New Zealand (Q22047663)
List of violations of this constraint: Database reports/Constraint violations/P1800#Item P407, search, SPARQL

Item “inception (P571)”: Items with this property should also have “inception (P571)”. (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/P1800#Item P571, SPARQL

Type “Wikimedia project (Q14827288), Wikimedia chapter wiki (Q118646238), Wikimedia thematic organisation wiki (Q118646240), Wikimedia user group wiki (Q118646239), Wikimania (Q483279), Wikimedia special project (Q33120885)”: item must contain property “instance of (P31)” with classes “Wikimedia project (Q14827288), Wikimedia chapter wiki (Q118646238), Wikimedia thematic organisation wiki (Q118646240), Wikimedia user group wiki (Q118646239), Wikimania (Q483279), Wikimedia special project (Q33120885)” 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/P1800#Type Q14827288, Q118646238, Q118646240, Q118646239, Q483279, Q33120885, SPARQL

Item “logo image (P154)”: Items with this property should also have “logo image (P154)”. (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/P1800#Item P154, SPARQL

Item “writing system (P282)”: Items with this property should also have “writing system (P282)”. (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/P1800#Item P282, search, SPARQL

Item “operator (P137)”: Items with this property should also have “operator (P137)”. (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/P1800#Item P137, search, SPARQL

Scope is as main value (Q54828448), as reference (Q54828450): the property must be used by specified way only (Help)

List of violations of this constraint: Database reports/Constraint violations/P1800#Scope, hourly updated report, SPARQL

Allowed entity types are 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/P1800#Entity types