Dewey Decimal Classification (DDC) number
ID ddc
This record is a draft: it has not been reviewed yet and may be incomplete or wrong. Do not rely on it for compliance decisions. Help improve it (see CONTRIBUTING.md).
Class number of the Dewey Decimal Classification, the library classification maintained by OCLC and used by public and school libraries and by national bibliographies in many countries. A number has three digits for the main class, division and section, such as 700 for the arts, and an optional decimal part for narrower subjects, such as 791.4. Numbers from the auxiliary tables are written with the table number and two hyphens, such as 2--4897 for Finland in Table 2 (geographic areas). The regexp is the Wikidata format of property P1036; it does not accept the letters and Cutter numbers of a full call number.
- Categories
- Publishing and print
- Countries
- Global (not tied to a country)
- Languages
- Common to most languages
- Wikidata
- P1036
- Quality
- 90/100 · missing: detector coverage
- Metacrafter rules
- no detection rule yet
- Supported by tools
- no tool record lists this type yet
Regular expression
^(?:\d{3}(?:\.\d+)?|[12456]--\d+|3[ABC]?--\d+)$Python re syntax.
Examples
| Value | Description |
|---|---|
| 700 | The arts |
| 791.4 | Radio (Wikidata example) |
| 2--4897 | Finland, Table 2 notation |
| 79 invalid | Fewer than three digits |
Translations
| Language | Name | Description |
|---|---|---|
| Russian | Индекс Десятичной классификации Дьюи (ДКД) | Классификационный индекс библиотечной классификации Дьюи: три цифры класса и, при необходимости, десятичная часть. |
Sources
- wikipedia: https://en.wikipedia.org/wiki/Dewey_Decimal_Classification
- wikidata: https://www.wikidata.org/wiki/Property:P1036
- doc: https://www.oclc.org/en/dewey.html
Use this record
- Page URL:
https://registry.apicrafter.io/datatype/ddc - JSON: API v1 · legacy shape (used by metacrafter) · Markdown (for LLMs)
- Improve it: edit
data/datatypes/any/publishing/ddc.yamlon GitHub