Untitled query #26927

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

SQL

use cswiki_p;
-- potřebuju vypsat všechny kurzy k jednotlivým top 10 kurzistům a nevím jak
select user_id, user_name, user_id as count_id, course_name
from
ep_users_per_course
join user on user_id=upc_user_id
join ep_courses on upc_course_id=course_id
join ep_orgs on course_org_id=org_id
where upc_role=0
order by count_id desc
limit 10;

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SQL

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