RE: sql troubles

Try:
With x as (Select *
From YourTable
Where rdate between 20181212 and 20190101 and batch <> 'ORTE'
and prem = '100')
y as (Select PREM, RDATE, Max(RTIME) rtime
From x)
Select x.*
from x join y on x.Prem = y.Prem
and x.Rdate = y.Rdate
and x.RTime = y.RTime;
Mit freundlichen Grüßen / Best regards

Birgitta Hauser


"Shoot for the moon, even if you miss, you'll land among the stars." (Les
Brown)
"If you think education is expensive, try ignorance." (Derek Bok)
"What is worse than training your staff and losing them? Not training them
and keeping them!"
?Train people well enough so they can leave, treat them well enough so they
don't want to.? (Richard Branson)


-----Original Message-----
From: MIDRANGE-L <midrange-l-bounces@xxxxxxxxxxxxxxxxxx> On Behalf Of Justin
Taylor
Sent: Montag, 30. März 2020 16:32
To: Midrange Systems Technical Discussion <midrange-l@xxxxxxxxxxxxxxxxxx>
Subject: RE: sql troubles

Would this work:
select PREM, max( digits(RDATE) concat digits(RTIME) )
from hstread00
where rdate between 20181212 and 20190101 and batch <> 'ORTE' and prem =
'100'
group by PREM



-----Original Message-----
From: Smith, Mike [mailto:Mike_Smith@xxxxxxxxxxxxxxxx]
Sent: Monday, March 30, 2020 9:13 AM
To: Midrange Systems Technical Discussion <midrange-l@xxxxxxxxxxxxxxxxxx>
Subject: sql troubles

I am trying to select data from a history file. There may be multiple
records on a day, and I only want to select the record with the last time
for the each date in the date range.

PREM Batch RDATE RTIME
100 MR07 20181212 100000
100 MR07 20181212 110020
100 MR07 20181213 100000
101 MR08 20181212 100000


The basics are
Select * from hstread00 where rdate between 20181212 and 20190101 and batch
<> 'ORTE' and prem = '100'

I've can manage a single max date, or a single max time for the PREM, but I
need the max time for each date for each PREM

Any help appreciated.

Mike


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