Property talk:P9651

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Book Owners Online person ID
identifier for a person in the database Book Owners Online

Applicable "stated in" value	Book Owners Online (Q106901446)
Data type	External identifier
Domain	human (Q5)
Allowed values	[A-Z][a-z]+(_[A-Z][a-z]+)*(_(ca\.|fl\.)?[1-2]\d{3}(\/\d)?-[1-2]\d{3}(\/\d)?|d\.[1-2]\d{3})?
Example	George Abbot (Q714925) → George_Abbot_1562-1633 John Wyrley (Q106901421) → Sir_John_Wyrley
Source	https://www.bookowners.online/Category:All_Owners
Formatter URL	https://bookowners.online/$1
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 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 Mix'n'match (Report) Database reports/Constraint violations/P9651 Map Random list
Proposal discussion	Proposal discussion
Current uses	Total 1,244 Main statement 1,240 99.7% of uses Qualifier 2 0.2% of uses Reference 2 0.2% of uses
Search for values

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

Type “human (Q5)”: item must contain property “instance of (P31)” with classes “human (Q5)” 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/P9651#Type Q5, 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/P9651#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/P9651#Single value, SPARQL

Format “[A-Z][a-z]+(_[A-Z][a-z]+)*(_(ca\.|fl\.)?[1-2]\d{3}(\/\d)?-[1-2]\d{3}(\/\d)?|d\.[1-2]\d{3})?”: 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/P9651#Format, SPARQL

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/P9651#Scope, 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/P9651#Entity types

Passing to page ID

Hi @Andrew Gray, DrGavinR, Arbnos:! I would like to discuss the possibility to convert this property from page title to page ID, as I already evaluated in the property proposal: in the last two months many links have been broken due to page moves without leaving redirections. Here just three examples ([1], [2], [3]) but there are surely many more. Page IDs are the only possibility for having permanent links in my opinion, so I would suggest removing all existing page titles and re-start using this same property with page IDs. I wait for your opinions. Good night, --Epìdosis 20:41, 13 August 2021 (UTC)

If this website site uses MediaWiki, you may be interested in using MediaWiki page ID (P9675). Pamputt (talk) 08:11, 14 August 2021 (UTC)

@Pamputt: It is exactly what I meant with "page ID" ;-) --Epìdosis 10:57, 14 August 2021 (UTC)

 Support--DrGavinR (talk) 07:31, 15 August 2021 (UTC)

 Support I'd be happy with this. Are you able to put together a list of pagenames to IDs and do the changeover? If not I can try and do it in a week or so. Andrew Gray (talk) 16:19, 19 August 2021 (UTC)

@Andrew Gray: No haste, if you can do it in a week or so we can surely wait. Inform us here when you have news :) --Epìdosis 21:15, 19 August 2021 (UTC)

@Andrew Gray: News? --Epìdosis 18:59, 23 October 2021 (UTC)

@Epìdosis: Apologies - have been completely swamped with other things over the past couple of months. I'm not sure I'll be able to find any time for this, sorry. Andrew Gray (talk) 20:25, 27 October 2021 (UTC)