contributors to a category

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

SQL

SELECT 
	DISTINCT actor_name, 
    user_id, 
    CAST(MONTH(user_registration) AS CHAR) + CAST(YEAR(user_registration) AS CHAR) as reg, 
    YEAR(user_registration) as reg_year,
    2020 as participation_year
FROM revision
INNER JOIN categorylinks ON rev_page = cl_from
JOIN actor on rev_actor = actor_id
JOIN user on actor_user = user_id
AND actor_user IS NOT NULL
WHERE rev_parent_id = 0
AND cl_to = "Images_from_Wiki_Loves_Monuments_2020"
LIMIT 10

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