Hi Art
You say - I need help with improving/simplifying this SQL statement:
What exactly are you trying to achieve?
Better readability?
Quicker response?
What may impriove the response (and I am really stressing MAY) is to use a Common Table Expression (CTE)
For example
New With extractf as
New (select * from dbslsdlg where dhdate >= 20150701 and dhdate <= 20150730)
SELECT substr(idept,1,1) as lineSeq, dpdesc, min(dhloc) as location, sum(dhsell*dhqty) + Sum(aSell * aQty) as Sales_Amt, sum(dhcost*dhqty) + Sum(aCost * aQty) as Cost_Amt,
(cast( ( sum(dhsell*dhqty) + Sum(aSell * aQty) ) - (sum(dhcost*dhqty) + Sum(aCost * aQty)) as double) / cast(sum(dhcost*dhqty) + Sum(aCost * aQty) as double)) as Margin
Removed
changed from extractf left join KCX340D.dbprodpf on dhino = ino
Left Join DBSLSDXL1 b on aINo = ino
Left join dbdeptpf on substr(idept,1,1) = deptno
where
aDate >= 20150701 and aDate <= 20150730
group by substr(idept,1,1), dpdesc order by 1, dpdesc;
I believe (but don't quote me on this) the joins are only done on the records you are interested in and not the entire file
Couple of things - hopefully someone will respond saying that my thoughts are correct
Hopefully, this is what you are looking for
Alan Shore
E-mail : ASHORE@xxxxxxxx
Phone [O] : (631) 200-5019
Phone [C] : (631) 880-8640
'If you're going through hell, keep going.'
Winston Churchill
-----Original Message-----
From: MIDRANGE-L [mailto:midrange-l-bounces@xxxxxxxxxxxx] On Behalf Of Art Duarte
Sent: Thursday, October 15, 2015 4:29 PM
To: Midrange Systems Technical Discussion
Subject: SQL Help
Hello,
I need help with improving/simplifying this SQL statement:
SELECT substr(idept,1,1) as lineSeq, dpdesc, min(dhloc) as location, sum(dhsell*dhqty) + Sum(aSell * aQty) as Sales_Amt, sum(dhcost*dhqty) + Sum(aCost * aQty) as Cost_Amt,
(cast( ( sum(dhsell*dhqty) + Sum(aSell * aQty) ) - (sum(dhcost*dhqty) + Sum(aCost * aQty)) as double) / cast(sum(dhcost*dhqty) + Sum(aCost * aQty) as double)) as Margin
from dbslsdlg left join KCX340D.dbprodpf on dhino = ino
Left Join DBSLSDXL1 b on aINo = ino
Left join dbdeptpf on substr(idept,1,1) = deptno
where dhdate >= 20150701 and dhdate <= 20150730
AND aDate >= 20150701 and aDate <= 20150730
group by substr(idept,1,1), dpdesc order by 1, dpdesc;
Appreciate your help!
Thank you
Art Duarte
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