Property talk:P6769

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CNKI CJFD journal article ID
identifier for journal articles in China National Knowledge Infrastructure (CNKI)'s China Journal Full-text Database (CJFD)

Associated item	CNKI (Q12857515)
Applicable "stated in" value	China Academic Journals Full-text Database (Q109610850)
Data type	External identifier
Corresponding template	Template:CNKI (Q6737608)
Domain	article (Q191067)
Allowed values	^[A-Z]{4}([\w\-]{6,7}|[\w\-]{3,4}\.|[\w\-]{14})[0-9A-Z]{3}$
Example	The Qing Dang (Purging the KMT) Movement in Nanjing in 1927 (Q63449394) → LSYJ200506002
Source	https://www.cnki.net/ https://oversea.cnki.net http://cnki.com.cn/ http://en.cnki.com.cn/ https://chn.oversea.cnki.net https://tra.oversea.cnki.net
Formatter URL	http://www.cnki.com.cn/Article/CJFDTOTAL-$1.htm https://chn.oversea.cnki.net/kcms/detail/detail.aspx?dbcode=CJFD&filename=$1 https://kns.cnki.net/kcms/detail/detail.aspx?dbcode=CJFD&filename=$1 https://oversea.cnki.net/KCMS/detail/detail.aspx?dbcode=CJFD&filename=$1 https://tra.oversea.cnki.net/kcms/detail/detail.aspx?dbcode=CJFD&filename=$1
Related to country	People's Republic of China (Q148) (See 127 others)
See also	CNKI CJFD journal ID (P10082), CNKI author ID (P10466), CNKI institute ID (P10693), CQVIP article ID (P8925), Baidu Scholar paper ID (P10755), JSTOR article ID (P888)
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) Database reports/Constraint violations/P6769 Map Random list
Proposal discussion	Proposal discussion
Current uses	Total 5,140,205 Main statement 3,060,790 out of 72,326,844 (4% complete) 59.5% of uses Qualifier 3 <0.1% of uses Reference 2,079,412 40.5% of uses
Search for values

Type “article (Q191067)”: item must contain property “instance of (P31), subclass of (P279)” with classes “article (Q191067)” or their subclasses (defined using subclass of (P279)). (Help)

List of violations of this constraint: Database reports/Constraint violations/P6769#Type Q191067, hourly updated report, 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/P6769#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/P6769#Single value, SPARQL

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/P6769#Scope, hourly updated report, SPARQL

Item “published in (P1433)”: Items with this property should also have “published in (P1433)”. (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/P6769#Item P1433, SPARQL

Item “publication date (P577)”: Items with this property should also have “publication date (P577)”. (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/P6769#Item P577, 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/P6769#Entity types

Conflicts with “instance of (P31): Wikimedia disambiguation page (Q4167410), Wikimedia category (Q4167836), Wikimedia template (Q11266439), Wikimedia list article (Q13406463)”: this property must not be used with the listed properties and values. (Help)

List of violations of this constraint: Database reports/Constraint violations/P6769#Conflicts with P31, hourly updated report, SPARQL

Format “[A-Z]{4}([\w\-]{6,7}|[\w\-]{3,4}\.|[\w\-]{14})[0-9A-Z]{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/P6769#Format, SPARQL

CNKI actually includes multiple database:

• CJFD for journal articles (93755671 entries)
• CDMD for theses (4698829 entries)
• CPFD for conference articles (2736607 entries)
• CYFD for almanac articles (14879139 entries)
• CCND for newspaper articles (10000000+)
• CRFD for reference work (including dictionary and encyclopedia) articles (19000000+)
• SCOD for patents (122574485+)
• CISD for standards (440000+)
• CLKD for laws
• CJFZ for gazette

and others. This property is for CJFD only.--GZWDer (talk) 14:47, 5 July 2019 (UTC)[reply]

Hello everyone,

I have never seen a property move so much without the agreement of the community and that in 3 months of existence. To all of you, I would like to remind you of this section.

• Mahir256, you voted for the creation of this property, but now you change the header.  OK, that seems logical, but it had to be proposed before.

• Stevenliuyi, what are all these formatter URL (P1630)s? You changed the Regex and a format violation still existed. Your second example leads to a 404 from site, why? Is Q63445767 still in use? Otherwise it must be proposed for deletion or put a correct identifier. Or, are the identifiers perennial? I changed the RegEx at best, then I removed all P1630. The rest seems ok, but it had to be proposed before.

• GZWDer, your addition of number of records (P4876) generates a suggested constraint, could you add the reference where you found this information? The previous section means what?

Despite this, there are still 6 constraint violations to resolve. Cordially. —Eihel (talk) 00:44, 31 August 2020 (UTC)[reply]

@Eihel: CNKI has various different pages for each article, therefore there are different formatter URL (P1630). For instance, both [1] and [2] are official CNKI webpages for The Qing Dang (Purging the KMT) Movement in Nanjing in 1927 (Q63449394), and they provide slightly different information about the article. In regard to Q63445767, this article was indeed published in Historical Research (Q10368781), and the identifier was valid. However, it is a very rare instance when the online webpage for the article was deleted on CNKI because of censorship in China (Q2385874), since the article can be considered politically sensitive in China. Therefore, the statement for the identifier was deprecated with reason withdrawn identifier value (Q21441764). Lastly, the regex I created was correct and the format violation (Effects of star anise on the volatile flavor of braised chicken and its mechanism (Q76465803)) existed because that identifier is actually invalid. Effects of star anise on the volatile flavor of braised chicken and its mechanism (Q76465803) is a thesis instead of a journal article, so it's out of the scope of this property. The regex did its job to show the incorrect usage. --Stevenliuyi (talk) 01:17, 31 August 2020 (UTC)[reply]

For CDMD, a new property should be creared.--GZWDer (talk) 02:52, 31 August 2020 (UTC)[reply]

@GZWDer, Stevenliuyi: I added new formatter URL (P1630) and search formatter URL (P4354) which user interface are more modern. For example, The Qing Dang (Purging the KMT) Movement in Nanjing in 1927 (Q63449394) -> LSYJ200506002. Kethyga (talk) 06:56, 3 November 2021 (UTC)[reply]

According to Google search results, CNKI is more noted, while CJFD is a not exact label. @GZWDer @Stevenliuyi @Eihel @Mahir256 Kethyga (talk) 02:38, 22 February 2022 (UTC)[reply]

I agree that adding CNKI to the label would improve recognition. Stevenliuyi (talk) 15:00, 7 May 2023 (UTC)[reply]