monthly statistics of jawiki

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

SQL

use jawiki_p;
select
	user.user_name as 利用者名,
    date( user.user_registration ) as 登録日,
    min( date( rev.rev_timestamp ) ) as 初投稿日,
    max( date( rev.rev_timestamp ) ) as 最終投稿日
from user
inner join revision_userindex as rev on user.user_id = rev.rev_user
group by user.user_id, rev.rev_user, user.user_name, user.user_registration
order by 初投稿日 asc, 最終投稿日 asc

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