Property talk:P1150

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Regensburg Classification
identifier used for this class in the Regensburg Classification system

Applicable "stated in" value	Regensburg Classification (Q2137453)
Data type	External identifier
Allowed values	(LD,)?[A-Z]([A-Z]( [0-9]+([a-z]|\.[0-9]+)?( [A-Z][0-9]*)?)?)?( - [A-Z]([A-Z]( [0-9]+([a-z]|\.[0-9]+)?( [A-Z][0-9]*)?)?)?)?
Example	philosophy (Q5891) → - CK CA - CK (- CK RDF) Immanuel Kant (Q9312) → 5000 - CF 5017 CF 5000 - CF 5017 (5000 - CF 5017 RDF)
Source	http://rvk.uni-regensburg.de
Formatter URL	http://rvk.uni-regensburg.de/regensburger-verbundklassifikation-online#notation/$1
See also	Basisklassifikation (P5748), Colon Classification (P8248), Regensburg Classification (works and editions) (P8362)
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/P1150 Map Random list
Proposal discussion	Proposal discussion
Current uses	Total 4,465 Main statement 4,461 >99.9% of uses Qualifier 2 <0.1% of uses Reference 2 <0.1% of uses
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[create Create a translatable help page (preferably in English) for this property to be included here]

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/P1150#Scope, hourly updated report, SPARQL

Conflicts with “instance of (P31): book (Q571)”: this property must not be used with the listed properties and values. (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/P1150#Conflicts with P31, search, SPARQL

Conflicts with “instance of (P31): magazine (Q41298)”: this property must not be used with the listed properties and values. (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/P1150#Conflicts with P31, search, SPARQL

Format “[A-Z]([A-Z]( [0-9]+)?)?( - [A-Z]([A-Z]( [0-9]+)?))?”: 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/P1150#Format, 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/P1150#Unique value, SPARQL (every item), SPARQL (by value)

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/P1150#Single value, 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/P1150#Entity types

This property is being used by: el:Πρότυπο:Πληροφορίες βιβλίου Please notify projects that use this property before big changes (renaming, deletion, merge with another property, etc.)

Why "string"?

Why is the data type "string" and not "external identifier"? --Anvilaquarius (talk) 14:34, 10 September 2018 (UTC)

historical reasons. It could be converted to external identifier though -- JakobVoss (talk) 20:36, 10 September 2018 (UTC)

This property should actually migrated to external-id to support querying for RVK URIs in SPARQL and to let statements show up in the identifiers section. An example:

wd:Q75 wdt:P1150 "AP 18420" should be

wd:Q75 wdt:P1150 <http://rvk.uni-regensburg.de/nt/AP%2018420> instead. -- JakobVoss (talk) 09:10, 12 July 2019 (UTC)

We're about to convert the property from string to external-id datatype (see), if you disagree feel free to leave a message. --Epìdosis 07:52, 19 May 2020 (UTC)