RE: sql - group by clause, aggregate returning first record values for rest of fields.

[Matt Olson <Matt.Olson@xxxxxxxx>]

I don't believe this will yield your desired results every time however, you could randomly get the same results that the MIN() query provided to you depending on the rows the query engine wanted to return to you first.  

Atleast with the MIN query you would know what row you are going to get (minimum of all the result of the column values) instead of random record the query engine decided to retrieve first. 

-----Original Message-----
From: Gqcy [mailto:gmufasa01@xxxxxxxxx] 
Sent: Wednesday, February 06, 2013 3:57 PM
To: midrange-l@xxxxxxxxxxxx
Subject: Re: sql - group by clause, aggregate returning first record values for rest of fields.

Thanks Tom,
this worked perfectly.
Except we should use "parTITion" not "partion"..

:)



On 2/6/2013 3:42 PM, Tom E Stieger wrote:
> Try the following:
>
> With sorted as (select usrinusr, usrinjob, usrinnbr, usrinlvl, 
> usrinpgm, usrintstmp,
> Row_number() over(partion by usrinusr, usrinjob, usrinnbr) as rowno 
> from mgpll/usrinpf1 ) select usrinusr, usrinjob, usrinnbr, usrinlvl, 
> usrinpgm, usrintstmp from sorted where rowno = 1
>
>
> -Tom Stieger
> IT Manager
> California Fine Wire
>
>
>
>
> -----Original Message-----
> From: midrange-l-bounces@xxxxxxxxxxxx 
> [mailto:midrange-l-bounces@xxxxxxxxxxxx] On Behalf Of Gqcy
> Sent: Wednesday, February 06, 2013 12:43 PM
> To: midrange-l@xxxxxxxxxxxx
> Subject: sql - group by clause, aggregate returning first record values for rest of fields.
>
> I have a file with 6 fields, I want to aggregate by the first three fields (jobname, user, jobnumber), I want to return the "first values found" for the rest of the fields in the file.
> I can get min() to kinda work, but that is field dependent.
>
>
> select usrinusr, usrinjob, usrinnbr, usrinlvl, usrinpgm, usrintstmp 
> from mgpll/usrinpf1 group by usrinusr, usrinjob, usrinnbr order by 
> usrinnbr
>
> I want to return the values in the first record returned for the group record by usrinusr, usrinjob, usrinnbr...

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