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This query is marked as a draft
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Cryptic
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Categories that are in both [[Category:Hidden categories]] and [[Category:Tracking categories]] and in no other categories. For [[WP:VPT#PetScan or DB query for categories exclusively in Category:Hidden categories and Category:Tracking categories]] circa 6 October 2022.
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SQL
SELECT page_title FROM page JOIN categorylinks AS hc ON hc.cl_from = page_id AND hc.cl_to = 'Hidden_categories' JOIN categorylinks AS tc ON tc.cl_from = page_id AND tc.cl_to = 'Tracking_categories' LEFT JOIN categorylinks AS oc ON oc.cl_from = page_id AND oc.cl_to NOT IN ('Hidden_categories', 'Tracking_categories') WHERE page_namespace = 14 AND oc.cl_to IS NULL;
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