In sql scripts, I have used IFNULL, however, IFNULL is not usable in a RPG
program.
Why shouldn't it be useable in a RPG program?
The following SQL Statement should work (without any indicator variables).
exec sql Select IFNULL(sum(WBBLT1 + WBBLT2 + wbblt3 + wbblt4 -
wbaqmf - wbrsoq - wbbosq - wbusoq), 0)
into :wQty_on_Hand
from IC140M
where WBPPN = :slptno
and wbco = :slco
and wbwhno = :slloc;
Instead of IFNULL you can also use COALESCE, which is slightly more
powerfull than IFNULL.
With COALESCE you can have multiple replacement options, while with IFNULL
you have to nest multiple IFNULL functions:
COALESCE(Year1.CUSTNO, Year2.CUSTNO, Year3.CUSTNO, 0)
Versus
IFNULL(IFNULL(IFNULL(Year1.CUSTNO, Year2.CUSTNO), YEAR3.CUSTNO), 0)
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: RPG400-L <rpg400-l-bounces@xxxxxxxxxxxxxxxxxx> On Behalf Of Justin
Taylor
Sent: Mittwoch, 5. Februar 2020 14:49
To: RPG programming on IBM i <rpg400-l@xxxxxxxxxxxxxxxxxx>
Subject: RE: How do I monitor for the message "Indicator variable required"
in the following statement?
You can either check the SQLSTATE afterwards, or add an indicator variable
to your INTO: clause
(
https://www.ibm.com/support/knowledgecenter/ssw_ibm_i_73/rzajp/rzajpindvar.
htm).
-----Original Message-----
From: dfreinkel [mailto:dfreinkel@xxxxxxxxxxxxxxxxx]
Sent: Tuesday, February 04, 2020 2:46 PM
To: RPG400-L <rpg400-l@xxxxxxxxxxxxxxxxxx>
Subject: How do I monitor for the message "Indicator variable required" in
the following statement?
exec sql Select sum(WBBLT1 + WBBLT2 + wbblt3 + wbblt4 -
wbaqmf - wbrsoq - wbbosq - wbusoq)
into :wQty_on_Hand
from IC140M
where WBPPN = :slptno
and wbco = :slco
and wbwhno = :slloc;
In sql scripts, I have used IFNULL, however, IFNULL is not usable in a RPG
program.
This is a 7.2 system.
TIA
Darryl Freinkel
A4G.
Tel: 770.321.8562 Ext 111 | Cell: 678.355.8562
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