SELECT grant_id ,  count(*) FROM Documents GROUP BY grant_id ORDER BY count(*) DESC LIMIT 1
For each grant id, how many documents does it have, and which one has the most?
SELECT grant_id , count ( * ) FROM Documents GROUP BY grant_id ORDER BY count ( * ) DESC LIMIT 1
select grant_id , count ( * ) from documents group by grant_id order by count ( * ) desc limit value
For each grant id , how many documents does it have , and which one has the most ?