Articles not connected to Wikidata items on plwiki

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

SQL

USE plwiki_p;
SELECT CONCAT("Kategoria:",page_title) AS page_title
FROM page
LEFT JOIN langlinks
ON ll_from = page_id
LEFT JOIN (SELECT * FROM page_props WHERE pp_propname = 'wikibase_item') AS props
ON pp_page = page_id
WHERE page_namespace = 0
AND ll_title IS NULL
AND pp_value is NULL
ORDER BY page_title #group BY page_title;

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