Property talk:P9623

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Price One Penny library ID
identifier for a library in the Price One Penny database

Applicable "stated in" value	Price One Penny (Q106923678)
Data type	External identifier
Domain	research library (Q1438040), public library (Q28564) or national library (Q22806)
Allowed values	[A-Za-z-]+
Example	Bodleian Library (Q82133) → Bodley Auckland Central City Library (Q55121575) → Auckland Bibliothèque nationale de France (Q193563) → BNF
Source	http://priceonepenny.info/
Formatter URL	http://www.priceonepenny.info/database/show_library.php?abbreviation=$1
See also	Price One Penny author ID (P9619), Price One Penny work ID (P9622), Price One Penny publisher ID (P9624)
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 Database reports/Constraint violations/P9623 Map Random list
Proposal discussion	Proposal discussion
Current uses	Total 462 Main statement 334 out of 338 (99% complete) 72.3% of uses Qualifier 3 0.6% of uses Reference 125 27.1% 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/P9623#Single value, 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/P9623#Unique value, hourly updated report, SPARQL (every item), SPARQL (by value)

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/P9623#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/P9623#Scope, SPARQL

Format “[A-Za-z-]+”: 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/P9623#Format, SPARQL

Type “research library (Q1438040), public library (Q28564), national library (Q22806)”: item must contain property “instance of (P31)” with classes “research library (Q1438040), public library (Q28564), national library (Q22806)” 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/P9623#Type Q1438040, Q28564, Q22806, SPARQL