Re: SQL -- MIDRANGE-L

select column_a, max(timestamp_field)
 group by column_a


===========================================================
R. Bruce Hoffman, Jr.
 -- IBM Certified AS/400 Professional System Administrator
 -- IBM Certified AS/400 Professional Network Administrator

"The sum of all human knowledge is a fixed constant.
    It's the population that keeps growing!"

-----Original Message-----
From: Howard Weatherly <hweatherly@dlis.dla.mil>
To: MIDRANGE-L@midrange.com <MIDRANGE-L@midrange.com>
Date: Thursday, February 03, 2000 12:41 PM
Subject: Re: SQL


>Thanks Rob and others, but my goal is a list, not a single row! in
>otherwords I want all duns with the max timestamp for each duns. In the
>example there were two duns that have two timestamps, I want the greater
>timestamp of the two along with all of the other rows which have only
>one timestamp and this seems such a simple thing but is driving me nuts!
>I marked the desired result set with an "*".
>.
>.
>.
>003387891
>0033878910013
>.
>.
>.
>
>-----Original Message-----
>From: Rob Berendt [mailto:rob@dekko.com]
>Sent: Wednesday, February 02, 2000 3:58 PM
>To: MIDRANGE-L@midrange.com
>Subject: Re: SQL
>
>
>SELECT DUNS, TMSTMP FROM CDATA WHERE TMSTMP IN(SELECT MAX(TMSTMP) FR
>OM CDATA)
>
>hweatherly@dlis.dla.mil on 02/02/2000 03:48:24 PM
>
>How can I construct an sql statement to select the highest value along
>with additional information?
>I have tried select duns, max(tmstmp) from cdata but this seems to fuss
>about the MAX function, any help will be appreciated because I believe I
>
>am going nuts here!
>
>CDATA table
>
>DUNS                     TMSTMP
>003253390      2000-01-27-07.51.03.971320 *
>003299534      2000-01-24-08.32.25.182200 *
>003301959      2000-01-25-10.16.11.563368 *
>003321171      2000-01-28-07.32.22.707568 *
>
>003387891      2000-01-24-08.32.25.208280
>003387891      2000-01-28-07.32.22.719080 *
>
>0033878910013  2000-01-24-08.32.25.245328
>0033878910013  2000-01-27-07.51.03.974312 *
>
>003420841      2000-01-26-11.10.11.521704 *
>003424470      2000-01-24-13.17.37.531624 *
>003479797      2000-01-28-07.32.22.755704 *
>
>
>
>Howard Weatherly
>      (616)961-4324
>             Logicon
>
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