Property talk:P2311

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maximum date (property constraint)
qualifier to define a property constraint in combination with "property constraint" (P2302). Use "unknown value" for current date.

Has quality	maximum (Q10578722)
Data type	Point in time
Domain	Wikidata property with datatype 'time' (Q18636219)
Usage notes	Use this qualifier to define a property constraint in combination with P2302. Use "unknown value" for current date.
<complementary property>	minimum date (property constraint) (P2310)
See also	maximum value (P2312), latest date (P1326)
Lists	Most recently created items Items with novalue claims Items with unknown value claims Usage history (total) Usage history (main statement) Future dates Dates in Gregorian calendar before 1582 Dates before year 1 (Help:Dates#Years BC) Date on January 1 (Help:Dates#January 1 as date) Database reports/Complex constraint violations/P2311 Database reports/Constraint violations/P2311
Proposal discussion	Proposal discussion
Current uses	Total 25 Qualifier 25 100% of uses

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

List of violations of this constraint: Database reports/Constraint violations/P2311#Scope, hourly updated report, SPARQL

Type “Wikidata property with datatype 'time' (Q18636219)”: item must contain property “instance of (P31)” with classes “Wikidata property with datatype 'time' (Q18636219)” 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/P2311#Type Q18636219, SPARQL

Allowed entity types are Wikibase property (Q29934218): 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/P2311#Entity types

Item “property constraint (P2302): range constraint (Q21510860)”: Items with this property should also have “property constraint (P2302): range constraint (Q21510860)”. (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/P2311#Item P2302, SPARQL

Minimum date value of a "range constraint" must be less than the maximum date value of the range
For a range constraint (Q21510860), the value of the minimum date (property constraint) (P2310) qualifier must be less than the value of the maximum date (property constraint) (P2311) qualifier. (Help)
Violations query: SELECT ?item ?itemLabel ?min ?max WHERE { ?item p:P2302 [ps:P2302 wd:Q21510860; pq:P2310 ?min; pq:P2311 ?max]. FILTER (?min >= ?max). SERVICE wikibase:label { bd:serviceParam wikibase:language "[AUTO_LANGUAGE],en". } }
List of this constraint violations: Database reports/Complex constraint violations/P2311#Minimum date value of a "range constraint" must be less than the maximum date value of the range

Qualifier only valid to use with "range constraint"
This property must only be used as a qualifier for property constraint (P2302) value of range constraint (Q21510860). (Help)
Violations query: SELECT ?item ?itemLabel ?constraint ?constraintLabel ?max WHERE { ?item p:P2302 [ps:P2302 ?constraint; pq:P2311 ?max]. FILTER (?constraint != wd:Q21510860). SERVICE wikibase:label { bd:serviceParam wikibase:language "[AUTO_LANGUAGE],en". } }
List of this constraint violations: Database reports/Complex constraint violations/P2311#Qualifier only valid to use with "range constraint"

Title	ID	Data type	Description	Examples	Inverse
property constraint	P2302	Item	property constraint: constraint applicable to a Wikidata property	IMDb ID <property constraint> distinct-values constraint	-
exception to constraint	P2303	Item	item that is an exception to the constraint, qualifier to define a property constraint in combination with P2302	IUCN conservation status <exception to constraint> Varia jamoerensis	-
group by	P2304	Property	GROUP BY: qualifier to define a property constraint in combination with P2302 (Wikidata property constraint) that is used to group constraint violations in constraint violation reports	→ Property talk:P2304	-
item of property constraint	P2305	Item	allowed-entity-types constraint: qualifier to define a property constraint in combination with "property constraint" (P2302)	mass <item of property constraint> kilogram	-
property	P2306	Property	Wikidata property: qualifier to define a property constraint in combination with P2302 (property constraint), or to limit the scope of Q44292881 (wikidata statement)	→ Property talk:P2306	-
Wikimedia Commons namespace	P2307	String	qualifier used with the Commons link property constraint (Q21510852) to specify acceptable Wikimedia Commons namespaces that a property value can link to	→ Property talk:P2307	-
class	P2308	Item	class: qualifier to define a property constraint in combination with "property constraint" (P2302)	→ Property talk:P2308	-
relation	P2309	Item	relation and relation: qualifier to define a property constraint in combination with P2302. Possibly values are: "instance of", "subclass of" or "instance or subclass of". The qualifier to use with the property "relative" is "type of kinship" (P1039), not this	→ Property talk:P2309	-
minimum date (property constraint)	P2310	Point in time	qualifier to define a property constraint in combination with "property constraint" (P2302)	→ Property talk:P2310	-
maximum date (property constraint)	P2311	Point in time	qualifier to define a property constraint in combination with "property constraint" (P2302). Use "unknown value" for current date.	→ Property talk:P2311	-
maximum value	P2312	Quantity	maximum: qualifier indicating the lowest possible value of a quantity. "no value" can be used to specify no upper bound	range constraint <maximum value> 1,234	-
minimum value	P2313	Quantity	minimum: qualifier indicating the lowest possible value of a quantity	range constraint <minimum value> 0	-
format as a regular expression	P1793	String	regular expression: regex describing an identifier or a Wikidata property. When using on property constraints, ensure syntax is a PCRE	ISO 639-3 <format as a regular expression> [a-z]{3} and IMDb ID <format as a regular expression> ev\d{7}\/\d{4}(-\d)?|(ch|co|ev|nm|tt)\d{7}	-
constraint status	P2316	Item	Wikidata constraint status: qualifier to define a property constraint in combination with P2302. Use values "mandatory constraint" or "suggestion constraint"	property scope constraint <constraint status> mandatory constraint	-
syntax clarification	P2916	Monolingual text	syntax: qualifier for P1793 (regular expression): to provide a textual description of the regex syntax of a value. Should be displayable after the text "The value for the property should match" and be followed by the regex.	Yandex Music artist ID <syntax clarification> numerisk streng, 1 til 7 tall	-