nlwiki Categories with only redirects

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

Of all categories that have no subcategories and one or more pages, show those that have only redirects.

SQL

USE nlwiki_p;
SELECT cat_title, cat_pages, cat_subcats
FROM category
WHERE 
	cat_pages > 0 AND
    EXISTS (SELECT * FROM categorylinks WHERE cl_to=cat_title) AND
    NOT EXISTS (SELECT * FROM categorylinks, page WHERE cl_to=cat_title AND page_id=cl_from AND page_is_redirect=0)

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SQL

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