Property talk:P7154

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Empik author ID
identifier for an author on Empik site

Associated item	Empik (Q3045978)
Data type	External identifier
Domain	human (Q5) or group of humans (Q16334295)
Example	Basshunter (Q383541) → basshunter Steven Spielberg (Q8877) → spielberg+steven Robert Ludlum (Q224113) → ludlum+robert
Source	https://www.empik.com
Formatter URL	https://www.empik.com/szukaj/produkt?author=$1
Related to country	Poland (Q36) (See 68 others)
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 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) ?qid ) } GROUP BY ?milestonep } ?milestonep pq:P585 ?date }">Chart by item creation date Map of people by place values: place of birth educated at work location residence place of death place of burial January 1st dates People with date of birth on January 1 People with date of death on January 1 People with both dates on January 1 Database reports/Constraint violations/P7154 Map Random list
Proposal discussion	Proposal discussion
Current uses	Total 105 Main statement 102 97.1% of uses Qualifier 3 2.9% of uses
Search for values

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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/P7154#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/P7154#Unique value, SPARQL (every item), 1) ORDER BY DESC(?ct) LIMIT 100 } ?item wdt:P7154 ?value . SERVICE wikibase:label { bd:serviceParam wikibase:language "en" . ?item rdfs:label ?itemLabel . ?value rdfs:label ?valueLabel . } } GROUP BY ?value ORDER BY DESC(?ct)">SPARQL (by value)

Type “human (Q5), group of humans (Q16334295)”: item must contain property “instance of (P31)” with classes “human (Q5), group of humans (Q16334295)” 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/P7154#Type Q5, Q16334295, 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/P7154#Entity types

Scope is as main value (Q54828448), as reference (Q54828450): 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/P7154#Scope, SPARQL