Which organisation hired the most number of research staff? List the organisation id, type and detail.
create table organisations (organisation_id varchar, organisation_type varchar, organisation_details varchar, PRIMARY KEY (organisation_id)); create table research_staff (employer_organisation_id varchar, PRIMARY KEY (employer_organisation_id))
select t1.organisation_id, t1.organisation_type, t1.organisation_details from organisations as t1 join research_staff as t2 on t1.organisation_id = t2.employer_organisation_id group by t1.organisation_id order by count(*) desc limit 1