Hola Rodrigo,
I suggest that you use a temporary table:
CREATE tmp (
INT id,
TIME max);
INSERT INTO tmp
SELECT mytable.id, MAX(mytable.start)
FROM mytable
GROUP BY mytable.id;
and then join it to your original table:
SELECT M.*
FROM mytable M, tmp T
WHERE M.id=T.id
AND M.start=T.max;
I didn't try it, but that's what I would try.
Un saludo,
Olivier
----- Original Message -----
From: Rodrigo Gonzalez <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Wednesday, May 30, 2001 4:56 PM
Subject: GROUPING
Hi,
I have to do a query but i don't know how to do this...
I have this table
id int
start time
stop time
...
There are 2 to 4 rows for each id
I have to select one row for each id where start is the max value between
all rows with this id
If you have an idea please let me know
Thanks
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