Q&A for linguists, teachers and learners wanting to discuss the finer points of the Portuguese language
select count(case when cn<10 then 1 end), count(case when (cn>=10 and cn<=20) then 1 end), count(case when cn>20 then 1 end) from ( select owneruserid, count(*) cn from posts where posttypeid = ( select id from posttypes where name = '%Question%' ) group by owneruserid ) as a