RE: SQL RPG question

Hey Charles,

The field is numeric, so zero will be retutned. Would this function still
work?

Thanks.

-----Original Message-----
From: rpg400-l-bounces@xxxxxxxxxxxx [mailto:rpg400-l-bounces@xxxxxxxxxxxx]
On Behalf Of Wilt, Charles
Sent: Friday, July 25, 2008 8:03 AM
To: RPG programming on the AS400 / iSeries
Subject: RE: SQL RPG question

Tim,

First a question....

Is the value in column 2 actually zero? Given that you are doing LEFT OUTER
JOIN, it seems likely
that the value is actually NULL.

In which case, the COALESCE function is your friend...

SELECT cust, coalesce(rollupcust,cust)
FROM arfile left join rollup on cust = rollkey
where cust between 29600 and 29699



Charles Wilt
--
Software Engineer
CINTAS Corporation - IT 92B
513.701.1307

wiltc@xxxxxxxxxx

-----Original Message-----
From: rpg400-l-bounces@xxxxxxxxxxxx [mailto:rpg400-l-bounces@xxxxxxxxxxxx]
On Behalf Of tim
Sent: Thursday, July 24, 2008 11:34 PM
To: 'RPG programming on the AS400 / iSeries'
Subject: SQL RPG question

I am joining 2 files as following:



SELECT cust, rollupcust

FROM arfile left join rollup on cust = rollkey

where cust between 29600 and 29699



The results would be

0001000 0001000

0001001 0001000

0001002 0001000

0001003 0

0001004 0001002





My question is, is it possible to have the sql statement return the value
from column 1 (0001003) in column 2 when the value is zero.

So the results would look like this:

0001000 0001000

0001001 0001000

0001002 0001000

0001003 0001003 - would return value of column 1 if result
of
column 2 is zero

0001004 0001002





Hope this makes sense.

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