SELECT T1.project_id ,  count(*) FROM Project_Staff AS T1 JOIN Projects AS T2 ON T1.project_id  =  T2.project_id GROUP BY T1.project_id ORDER BY count(*) ASC
For each project id, how many staff does it have? List them in increasing order.
SELECT T1.project_id , count ( * ) FROM Project_Staff AS T1 JOIN Projects AS T2 ON T1.project_id = T2.project_id GROUP BY T1.project_id ORDER BY count ( * ) ASC
select t1 . project_id , count ( * ) from project_staff as t1 join projects as t2 on t1 . project_id = t2 . project_id group by t1 . project_id order by count ( * ) asc
For each project id , how many staff does it have ? List them in increasing order .