Op 02-07-10 11:12, Sebastian Proost schreef:
My two cents
SELECT * FROM (SELECT name, max(score) as m_score FROM table GROUP BY name ) AS a ORDER BY m_score DESC LIMIT 0,3
Just read this discussion. Isn't this problem very similar to one of Kenny's exam questions of last year? T.
Kenny Billiau schreef:
Ow that sucks :/
.. but what is wrong?
On Fri, 2 Jul 2010, Frederik Delaere wrote:
doesn't give correct results :(
Kenny Billiau wrote:
If you want the unique rows, use distinct. If you want the highest score per person, you'll have to use group by with an aggregate function ;)
SELECT name, max(score) FROM table GROUP BY name ORDER BY score DESC LIMIT 0,3
Kenny
On Fri, 2 Jul 2010, Lieven Sterck wrote:
SELECT DISTINCT name, score FROM .....
djebus, even I know that !! 8-)
On 02/07/2010 10:23, Frederik Delaere wrote:
lets say I have this data
id name score 1 dude1 9.1 2 dude2 9.5 3 dudette1 9.0 4 dude1 9.3 5 dudette1 8.5
And I want to select highest 3 scores:
SELECT score FROM table ORDER BY score DESC LIMIT 0,3
result will be
9.5 9.3 9.1
but how can I select both the name and the score and I only want one score per person
I can do: SELECT DISTINCT name FROM table ORDER BY score DESC LIMIT 0,3 this will give me the correct names in the correct order, but I want their score also
is this possible in one query ?
thanksuwel !
-- ================================================================== Thomas Van Parys Tel:+32 (0)9 331 36 95 fax:+32 (0)9 3313809 VIB Department of Plant Systems Biology, Ghent University Technologiepark 927, 9052 Gent, BELGIUM thomas.vanparys@psb.vib-ugent.be http://bioinformatics.psb.ugent.be ==================================================================