SELECT min(T2.HS) ,   T1.pPos FROM tryout AS T1 JOIN player AS T2 ON T1.pID  =  T2.pID GROUP BY T1.pPos
What is minimum hours of the students playing in different position?
SELECT min ( T2.HS ) , T1.pPos FROM tryout AS T1 JOIN player AS T2 ON T1.pID = T2.pID GROUP BY T1.pPos
select min ( t2 . hs ) , t1 . ppos from tryout as t1 join player as t2 on t1 . pid = t2 . pid group by t1 . ppos
What is minimum hours of the students playing in different position ?