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This worked for me on a test file. You basically pre-sort the file you're reading from, rather than reading direct from the file:

select cast(
json_objectAgg(trim(cast(ID as char(6))) value trim(DESC)
ABSENT ON NULL) as varchar(500))
from (select * from qtemp/tstfil order by desc)


Results:
CAST function
{"1":"TEST 1","2":"TEST 5","3":"TEST 2"}

-----Original Message-----
From: MIDRANGE-L <midrange-l-bounces@xxxxxxxxxxxxxxxxxx> On Behalf Of Justin Taylor
Sent: Monday, August 29, 2022 3:38 PM
To: MIDRANGE-L <midrange-l@xxxxxxxxxxxxxxxxxx>
Subject: Re: Sort JSON_OBJECTAGG

CAUTION: This email originated from outside of the organization. Do not click links or open attachments unless you recognize the sender and know the content is safe.


Here's what I need in the end.
{"3":"Apples", "2":"Broccoli", "1":"Carrots"}

The closest I've gotten is this,
[{"3":"Apples"}, {"2":"Broccoli"}, {"1":"Carrots"}] from this statement.
JSON_ARRAYAGG(JSON_OBJECT(trim(cast(ID as char(6))) value DESCRIPTION ABSENT ON NULL) ORDER BY DESCRIPTION)

From there I just fixed the braces and brackets.


Thanks


date: Sat, 27 Aug 2022 10:16:59 +0200
from: "Birgitta Hauser" <Hauser@xxxxxxxxxxxxxxx>
subject: RE: Sort JSON_OBJECTAGG

It seems that JSON_OBJECTAGG currently does not support an extra ORDER
BY/SORT ... and specifiying a final Order By may be too late.

Mit freundlichen Gr??en / Best regards

Birgitta Hauser
Modernization ? Education ? Consulting on IBM i


"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)


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