Most commonly used DOIs on the English Wikipedia

This query is marked as a draft This query has been published by Nemo bis.

SQL

USE enwiki_p;
SELECT SUBSTRING_INDEX(el_to, "/", -1) as DOI, count(el_id) AS frequency
FROM externallinks
WHERE el_index LIKE "https://org.doi%"
GROUP BY DOI
HAVING DOI LIKE "10.%"
ORDER BY frequency DESC
LIMIT 1000;

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