Q&A for students, teachers, and linguists wanting to discuss the finer points of the Russian language
select OwnerUserId, PostTypeId, COUNT(PostTypeId) AS colvo from Posts
where OwnerUserId in (select id from Users WHERE YEAR (Users.CreationDate) >= 2017)
AND YEAR (Posts.CreationDate) >= 2018 and Posts.Tags = 'sql'
GROUP BY OwnerUserId,PostTypeId
HAVING COUNT(PostTypeId) > 3
ORDER BY OwnerUserId