Property talk:P4961

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Sega8bit.com ID
identifier in the Sega8bit.com database of Master System video games

Applicable "stated in" value	Sega8bit.com (Q55400738)
Data type	External identifier
Domain	video game (Q7889) or video game compilation (Q16070115)
Allowed values	[1-9]\d*
Example	Prince of Persia (Q4047361) → 269 The NewZealand Story (Q2121419) → 31
Formatter URL	https://www.smstributes.co.uk/getinfo.asp?gameid=$1
See also	SMS Power ID (P5585)
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) Chart by item creation date Mix'n'match (Report) Database reports/Constraint violations/P4961 Map Random list
Proposal discussion	Proposal discussion
Current uses	Total 336 Main statement 334 out of 353 (95% complete) 99.4% of uses Qualifier 2 0.6% of uses
Search for values

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

Type “video game (Q7889), video game compilation (Q16070115)”: item must contain property “instance of (P31)” with classes “video game (Q7889), video game compilation (Q16070115)” 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/P4961#Type Q7889, Q16070115, 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/P4961#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/P4961#Unique value, SPARQL (every item), SPARQL (by value)

Format “[1-9]\d*”: value must be formatted using this pattern (PCRE syntax). (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/P4961#Format, SPARQL

Item “platform (P400): Sega Master System (Q209868)”: Items with this property should also have “platform (P400): Sega Master System (Q209868)”. (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/P4961#Item P400, search, SPARQL

Item “Guardiana ID (P4710)”: Items with this property should also have “Guardiana ID (P4710)”. (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/P4961#Item P4710, search, 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/P4961#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/P4961#Scope, SPARQL

Master System games without P4961

SELECT ?item ?itemLabel ?publication_date ?identifier WHERE {
  ?item wdt:P31 wd:Q7889.
  ?item wdt:P400 wd:Q209868.
  OPTIONAL { ?item wdt:P577 ?publication_date. }
  OPTIONAL { ?item wdt:P4961 ?identifier. }
  MINUS { ?item wdt:P4961 _:b5. }
  SERVICE wikibase:label { bd:serviceParam wikibase:language "[AUTO_LANGUAGE],en". }
}

Try it!