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David;
select client, date, amount
from table
where client = 'Client1'
order by date desc
fetch first row only
Duane Christen
--
Duane Christen
Senior Software Engineer
(319) 790-7162
Duane.Christen@xxxxxxxxxx
Visit PAETEC.COM
-----Original Message-----
From: midrange-l-bounces@xxxxxxxxxxxx [mailto:midrange-l-bounces@xxxxxxxxxxxx] On Behalf Of David FOXWELL
Sent: Tuesday, December 01, 2009 4:24 AM
To: Midrange Systems Technical Discussion
Subject: SQL extract a row from a set of rows
Hi,
A result of an sql command is returning multiple rows from a transaction file like this :
Client Date Amount
Client1 79899898 100
Client1 79909898 10
Client1 79919898 100
Client1 79929898 900
How can I get the amount from the first row? This corresponds to the last entry, as the date field is numeric and equal to 99999999 - date field. I have a key on this field, but no way of joining to it from my client file.
At the moment, I'm running a WITH T As ( ) kind of expression on the transaction file to get the minimum date value for a client and then joining to that.
This makes for a very long execution time. Surely there's a better way?
Thanks
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