Untitled query #19637

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

SQL

use arwiki_p;
    SELECT
     MIN(rev_timestamp) first,
     MAX(rev_timestamp) last
     FROM revision_userindex
     WHERE rev_user IN (SELECT ug_user FROM user_groups WHERE ug_group = 'sysop')
     GROUP BY rev_user
   ) a
 ) b
 GROUP BY monthly
 ORDER BY year, month;

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SQL

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