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No, it's not even my code, just something I found on the internet.   But I
can tell you that each record from the first table will be matched with
every record in the second table.

If you have 10,000 records.   It means that 10,000 records will have 10,000
records joined to it.  resulting in 100,000,000 records because you are not
joining the two tables together on anything.


Ciao!
Michael Schutte
Classic Italian dishes with a Bob Evans Twist - Enjoy our new Homestyle
Pastas!


rpg400-l-bounces@xxxxxxxxxxxx wrote on 12/18/2006 09:21:03 AM:

Michael, do you realize how long this takes to run when you are dealing
with
a lot of records (9391 to be exact)?





Thanks,


Jay Vaughn
iSeries Senior Programmer/Analyst
RateWatch
jayv@xxxxxxxxxxxxxx
251-633-8929


-----Original Message-----
From: Michael_Schutte@xxxxxxxxxxxx
To: RPG programming on the AS400 / iSeries <rpg400-l@xxxxxxxxxxxx>
Date: Fri, 15 Dec 2006 13:26:38 -0500
Subject: Re: SQL (RETURN MEDIAN?)



No burden... that was written on all smiles.  Hard to tell with text.
anyway... you will also need to change the where statement I gave you.
You
need to select the same record for both x and y.

WHERE x.QDDGRP = :WKGRP AND x.QDSDT >= :WKRUNDATE
    AND x.QDINST = :FIINST
    AND y.QDDGRP = :WKGRP AND y.QDSDT >= :WKRUNDATE
    AND y.QDINST = :FIINST

Ciao!
Michael Schutte
Classic Italian dishes with a Bob Evans Twist - Enjoy our new Homestyle
Pastas!


rpg400-l-bounces@xxxxxxxxxxxx wrote on 12/15/2006 01:23:34 PM:

sorry to burden you... I primarily write in RPGIV and DB2...





Thanks,


Jay Vaughn
iSeries Senior Programmer/Analyst
RateWatch
jayv@xxxxxxxxxxxxxx
251-633-8929


-----Original Message-----
From: Michael_Schutte@xxxxxxxxxxxx
To: RPG programming on the AS400 / iSeries <rpg400-l@xxxxxxxxxxxx>
Date: Fri, 15 Dec 2006 12:07:20 -0500
Subject: Re: SQL (RETURN MEDIAN?)


You seriously asked that...  I was hoping that you would be able to
plug
and play.

Here's what you want....

SELECT x.QDAPY INTO :WKAPYHIGH
FROM BRDETAIL x
CROSS JOIN BRDETAIL y
WHERE x.QDDGRP = :WKGRP AND x.QDSDT >= :WKRUNDATE
   AND x.QDINST = :FIINST
GROUP BY x.QDAPY
HAVING SUM(SIGN(x.QDAPY-y.QDAPY)) IN (1,0)
ORDER BY x.QDAPY DESC


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