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With B (name, num) as
( Select fileb.name, max(fileb.num) Group by fileb.name )
Select A.name, B.num
From filea A left outer join B on (A.name=B.name)
-----Original Message-----
From: midrange-l-bounces@xxxxxxxxxxxx
[mailto:midrange-l-bounces@xxxxxxxxxxxx] On Behalf Of Michael Ryan
Sent: Wednesday, March 18, 2009 2:02 PM
To: Midrange Systems Technical Discussion
Subject: SQL Select Greatest
So...I have two files...FileA has id and name, FileB has id and somenum.
I
want to retrieve id, name and somenum, where somenum is the highest
value of
somenum for that id. FileA is:
123, Michael
456, Bob
789, Sue
FileB is:
123, 44444
123, 55555
456, 11111
789, 33333
789, 22222
And I want:
123, 55555
456, 11111
789, 33333
How do I select greatest? Max? SELECT a.name, b.somenum FROM
michael/filea
a, michael/fileb b
WHERE a.id = b.id gives me everything of course. A subselect?
Thanks...
midrange.com
