Number of orphaned articles by category

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

Number of articles categorized in [[Category:All orphaned articles]] in each (other) category.
For [[WP:RAQ#Categories with most orphaned articles]] circa 17 March 2021.

SQL

SELECT cl1.cl_to AS 'Category',
       COUNT(*) AS 'Orphaned articles',
       cat_pages AS 'Total pages'
FROM categorylinks cl1
JOIN categorylinks cl2
  ON cl2.cl_from = cl1.cl_from
     AND cl2.cl_to = 'All_orphaned_articles'
LEFT JOIN category
  ON cat_title = cl1.cl_to
GROUP BY cl1.cl_to
ORDER BY COUNT(*) DESC, cat_pages DESC;

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