Re: Sql question about join order

Hi Art

I wondered what you were asking for - to get what you want, I believe you need some of the OLAP features, maybe partitioning - things that are like GROUP BY with more options.

I'm not able to come up with an example - I'm sure someone will - if this is the way to go. I recall doing something to get the 1st of an ordered group - that's what OLAP can give you.

Indexes or joins aren't really going to give you anything - unless you need better performance

On 10/28/2022 9:25 AM, Art Tostaine, Jr. wrote:

The limit 1 at the end of the query gave me just one row for result.

This was close but returned multiple rows. I only want one row per did#

create table wrkart.PTIR32501 as (
select drdid#,RCDCUID as userid,date(drstamp) as myDate,sdControl#
as control#,drshipper as shipper, sdPieces
from drpshp00
inner join whssd00 on drdid#=sddid#
inner join (select * from yaudsd order by datetime desc
) on audfid = sddid#
where drstamp >= '2022-10-26-00.00.00'
and audfnm = 'UPS'
and audds like 'UPS label printed Tracking:%'
)
with data

On Fri, Oct 28, 2022 at 10:06 AM Javier Sanchez <
javiersanchezbarquero@xxxxxxxxx> wrote:

You can try adding ORDER BY yaudsd.theTimeStampCol DESC FETCH FIRST 1 ROW
ONLY before the end of the query.

El vie, 28 oct 2022 a las 6:01, Art Tostaine, Jr. (<atostaine@xxxxxxxxx>)
escribió:

I need to get the last record from my inner join table, not the first

one.

This query gets the first row from yAudSd. The table has a timestamp.

Can I

order the join somehow or do I need to create an index?

create table wrkart.PTIR32501 as (
select drdid#,RCDCUID as userid,date(drstamp) as myDate,sdControl# as
control#,drshipper as shipper, sdPieces
from drpshp00
inner join whssd00 on drdid#=sddid#
inner join yaudsd on audfid = sddid#
where drstamp >= '2022-10-26-00.00.00'
and audfnm = 'UPS'
and audds like 'UPS label printed Tracking:%'
)
with data;
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