Q&A for those interested in the geology, meteorology, oceanography, and environmental sciences
select top 15 OwnerUserId ,OwnerDisplayName ,DisplayName ,count(a.id) count_posts from Posts a left join (select id, DisplayName from Users) b on a.OwnerUserId = b.Id group by OwnerUserId ,OwnerDisplayName ,DisplayName order by count(a.id) desc