CSD C1 - Quarry

This query is marked as a draft This query has been published by EqJjgOa8rVvsRmZL.

SQL

/*
select category.* from categorylinks
join page on cl_from = page_id
join category on page_title = cat_title and cat_pages > cat_subcats
where cl_to = 'Wikipedia_soft_redirected_categories' and cl_type = 'subcat'
*/

select count(*) from category
where cat_pages = 0
and cat_title not in (select page_title from categorylinks join page on cl_from = page_id where cl_to = 'Wikipedia_soft_redirected_categories' and cl_type = 'subcat')
-- limit 10;

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