Property talk:P384

Documentation

• Start a query
• Current uses
• Statistics by class
• String length
• List of qualifiers
• Count

Universal Decimal Classification
type of library classification

Data type	External identifier
Allowed values	\d{1,3}(\.\d{1,3})*
Source	http://www.udcc.org/udcsummary/php/index.php http://www.udcsummary.info/php/index.php
See also	Dewey Decimal Classification (P379), Library of Congress Classification (P383), Colon Classification (P380)
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 Gratispaideia 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)> Map Random list
Proposal discussion	Originally created without a formal discussion
Search for values

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

Format “((\=|\-|\`|\(|\(\=|\*|\+|\:{1,2}|\")?\d{1,3}(\.\d{1,3})*(\)|\")?)+”: value must be formatted using this pattern (PCRE syntax). Exceptions are possible as rare values may exist. List of this constraint violations: Database reports/Constraint violations/P384#Format, SPARQL

Allowed entity types are Wikibase item datatype (Q799): the property may only be used on a certain entity type Exceptions are possible as rare values may exist. List of this constraint violations: Database reports/Constraint violations/P384#allowed entity types