Re: SQL - return "newest" row from joined files

you can try row_number to assign a row number to the result rows
partition by order number order by order date descending. Then in a 2nd
pass, only select those rows with row number 1.

Here is an example of row_number:

with t1 as (
select a.pokey, a.ordnum,
row_number( ) over ( partition by a.pokey
order by a.ordnum desc ) rownum
from dshpf25 a
order by a.pokey, a.ordnum )
select * from t1
where rownum = 1



On Tue, Aug 13, 2013 at 4:59 PM, Gqcy <gmufasa01@xxxxxxxxx> wrote:

a order database has two tables, Active orders and Closed orders...
however the closed orders will have the same order number multiple times
(order number wraps about 2 times a year).

I have a list of order numbers, and need to return only the "newest"
order data, from either the Active file, or Closed file...

I made the following SQL, and it gets me data for the instance where
the order is no longer active:

select TTTUBID, TTSORD, COALESCE(SORD,OSORD),COALESCE(SPROD,OSPROD)
from datalib.tubtrkpf
left join datalib.activeord on SORD = TTSORD
left join datalib.closedord on OSORD = TTSORD
ORDER BY OTDTE


I think I need a different type of JOIN on my closedord file (inner and
outer didn't work)





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