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Update 'Database'

Kaimbacher 2023-04-17 14:48:33 +00:00
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Database.md

@ -86,9 +86,11 @@ Creative Commons licenses are commonly used to govern the use and distribution o
## Dataset references & identifiers
During the ingestion of the new dataset, there is the possibility to refer to existing publications (table 'document_references') through persistent Identifier (PID). Such identifiers are precisely defined and described in Tethys RDR under the metadata element "Dataset References" as identifier types: DOI, HANDLE, ISBN, URL, and URN. ([manual, p. 21](https://tethys.at/docs/HandbuchTethys.pdf#page=22)). Self referencing identifiers of a dataset are stored inside the table 'document_identifiers'.
During the ingestion of the new dataset, there is the possibility to refer to existing publications (table 'document_references') through persistent Identifier (PID). Such identifiers are precisely defined and described in Tethys RDR under the metadata element "Dataset References" as identifier types: DOI, HANDLE, ISBN, URL, and URN. (<a href="https://tethys.at/docs/HandbuchTethys.pdf#page=22" target="_blank">manual, p. 21</a>).
In addition, the relation types (the kind of relationship) are precisely defined ([manual, p. 22](https://tethys.at/docs/HandbuchTethys.pdf#page=23)). In most cases, the relation type “IsNewVersionOf” will be used.
Self referencing identifiers of a dataset are stored inside the table 'document_identifiers'.
In addition, the relation types (the kind of relationship) are precisely defined (<a href="https://tethys.at/docs/HandbuchTethys.pdf#page=23" target="_blank">manual, p. 22</a>). In most cases, the relation type “IsNewVersionOf” will be used.
![title](./tethys_references.png)
* **document_identifiers**: