Property talk:P6123

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B3Kat dataset ID
entry ID in B3Kat, the joint union catalogue of the Bavarian Library Network (Bibliotheksverbund Bayern - BVB) and the Cooperative Library Network Berlin-Brandenburg (KOBV)

Represents	B3Kat (Q124310134)
Data type	External identifier
Example	Zeitschrift für Gerontologie (Q27713917) → BV002532154 Bayerisches Wörterbuch (Q25628695) → BV042358845 Moderne Wissenschaft und Anarchismus (Q58303373) → BV020419589
Formatter URL	http://gateway-bayern.de/$1
Related to country	Germany (Q183) (See 362 others) (Bavaria (Q980))
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/P6123 Map Random list
Proposal discussion	Proposal discussion
Current uses	Total 684 Main statement 235 34.4% of uses Qualifier 4 0.6% of uses Reference 445 65.1% 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/P6123#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/P6123#Unique value, 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/P6123#Entity types