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This query is marked as a draft
This query has been published
by
Stefan2
.
https://en.wikipedia.org/wiki/User_talk:Stefan2#Latvian_Wikipedia.2C_again_:.29 Finds all articles on Latvian Wikipedia which do not appear in any categories other than hidden or redlinked categories.
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SQL
USE enwiki_p; SELECT p.page_title FROM page p LEFT JOIN categorylinks cl ON cl.cl_from = p.page_id RIGHT JOIN page_props pp ON pp.pp_page = cl.cl_from AND pp.pp_propname = 'hiddencat' WHERE p.page_namespace = 0 AND p.page_is_redirect = 0 AND pp.pp_page IS NULL AND cl.cl_from IS NULL
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