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Q&A for experienced flyers, pilots, and builders of drones and model aircraft

select count (u.ID) *100/(select count (u.ID) as count_of_users from users u

join Posts p on u.ID=p.OwnerUserID

having count(p.ID)=0) as percentage_of_total, count (u.ID) *100/(select count (u.ID) as count_of_users from users u

join Posts p on u.ID=p.OwnerUserID

having count(p.ID) between 1 and 3) as percentage_of_total from users u

fork query

edited may 19 22

created may 19 22 anonymous