Probeer dit:
SELECT company, val FROM
(
SELECT *, ROW_NUMBER() OVER (PARTITION BY
company order by val DESC) AS Row_ID FROM com
) AS A
WHERE Row_ID < 4 ORDER BY company
--Snelle demo hier...
Probeer dit:
SELECT company, val FROM
(
SELECT *, ROW_NUMBER() OVER (PARTITION BY
company order by val DESC) AS Row_ID FROM com
) AS A
WHERE Row_ID < 4 ORDER BY company
--Snelle demo hier...