Wikiproject participants group by year

Fork of Wikiproject participants in September 2023 by Ladsgroup

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

SQL

select wikiproject_name, count(*) no_participants, left(rev_timestamp, 4) as year FROM (select SUBSTRING_INDEX(page_title,'/',1) as wikiproject_name, rev_actor from revision join page on rev_page = page_id where page_namespace in (4,5) and page_title like 'WikiProject_%' group by wikiproject_name, rev_actor, left(rev_timestamp, 4)) as wikiproject_editors group by wikiproject_name, year order by count(*) desc;

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