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I tried this and am getting two errors:

DCL-S OutFile SQLType(CLOB_FILE) ccSid(1208) ;
exec sql set option commit=*none, naming=*sys;
Outfile_Name = %trim('/tmp/mytest.json');
Outfile_NL = %len(%trimr(Outfile_Name));
Outfile_FO = SQFCRT;.

Message ID . . . . . . : CPD4318 Severity . . . . . . . : 40

Message type . . . . . : Diagnostic

Date sent . . . . . . : 01/08/20 Time sent . . . . . . :
11:34:11


Message . . . . : Derived operands not valid for operator JSON_OBJECT.

Reason code 12.

Cause . . . . . : Either the derived operands are not compatible with
each
other or the operands are not compatible with operator JSON_OBJECT. The

type of incompatibility is indicated by reason code 12. The reason codes

and their meanings follow:
12 -- The CCSIDs (Coded Character Set Identifiers) of the operands cannot
be made compatible.

Even though my job CCSID and system CCSID is 37, I'm also getting this
Message ID . . . . . . : SQL0332 Severity . . . . . . . : 30

Message type . . . . . : Diagnostic

Date sent . . . . . . : 01/08/20 Time sent . . . . . . :
11:34:11


Message . . . . : Character conversion between CCSID 65535 and CCSID
1208
not valid.

Cause . . . . . : Character or graphic conversion has been attempted for

data that is not compatible. There is no conversion defined between
CCSID
65535 and CCSID 1208.



On Wed, Jan 8, 2020 at 10:50 AM Birgitta Hauser <Hauser@xxxxxxxxxxxxxxx>
wrote:

Select ... INTO can only handle a single return value/row!

In this way you should build the complete JSON document within a single
SELECT statement and write the result into the IFS.
For complex queries use common table expressions (CTE).
In the first (few) CTEs generate the raw data that must be included in the
JSON document.
In the next CTEs build successive the JSON data, starting with the lowest
level and then merging the result of these CTEs in the next CTEs ... until
the complete JSON document is built.

... on the other side it is possible to append data to an IFS table.
You have to change the _FO value to SQLAPP (=Append). After having changed
the File Operation, new data is added to the end of the IFS file.

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 Stephen
Piland
Sent: Mittwoch, 8. Januar 2020 16:06
To: RPG programming on IBM i <rpg400-l@xxxxxxxxxxxxxxxxxx>
Subject: RE: JSON_OBJECT and Writing to IFS

Great! Thanks! That did work. It only allows me to fetch the first row
to
dump into the IFS file, which makes sense to me.

How could I include multiple JSON messages / 'rows'? Someone approached us
about doing ND JSON, which might be what this would be. I'm not sure to be
honest.

Any thoughts?

-----Original Message-----
From: RPG400-L <rpg400-l-bounces@xxxxxxxxxxxxxxxxxx> On Behalf Of Birgitta
Hauser
Sent: Tuesday, January 7, 2020 11:23 PM
To: 'RPG programming on IBM i' <rpg400-l@xxxxxxxxxxxxxxxxxx>
Subject: RE: JSON_OBJECT and Writing to IFS

Outfile must be a CLOB_FILE CCSID 1208.

DCL-S OutFle SQLType(CLOB_FILE) CCSID(1208);

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 Stephen
Piland
Sent: Mittwoch, 8. Januar 2020 01:46
To: rpg400-l@xxxxxxxxxxxxxxxxxx
Subject: JSON_OBJECT and Writing to IFS

Anyone have any luck writing the encoded JSON out to the IFS like we have
done with XML using sqltype(xml_clob_File) and Select-ing into that
variable? Do I need to convert / cast the JSON_OBJECT into a CLOB in the
SQL? Thanks!

Quick Test...
dcl-s Outfile sqltype(xml_clob_File) ;
exec sql Set Option COMMIT=*NONE,CLOSQLCSR=*ENDMOD,DATFMT=*ISO;

// Prep JSON File
Outfile_Name = %trim('/temp/test.json'); Outfile_NL =
%len(%trimr(Outfile_Name)); Outfile_FO = SQFCRT;

exec sql Select json_object ('upc' value fldupc, 'price' value price) Into
:Outfile From PRICING;



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