Re: JSON_OBJECT and Writing to IFS

Thank you Birgitta. I definitely am set to CCSID 37

I declare the DBCLOB like this:
DCL-S OutFile SqlType(DBCLOB:256000) ccSid(1200) ;

but these lines say the variables are not defined
Outfile_Name = %trim('/tmp/test.json');
Outfile_NL = %len(%trimr(Outfile_Name));
Outfile_FO = SQFCRT;


On Thu, Jan 9, 2020 at 12:10 PM Birgitta Hauser <Hauser@xxxxxxxxxxxxxxx>
wrote:

The example returns the JSON Document as a CLOB Variable, while you
defined a CLOB_FILE.
You may try it with a DBCLOB_FILE.

You are sure, your job environment is not CCSID 65535 or may be the data
in your table are CCSID 65535.

Try to explicitly cast your JSON Data to UTF-8 in SQL, but I assume it
will not work either. Data without CCSID (or CCSID 65535) cannot be
converted.

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 Art
Tostaine, Jr.
Sent: Donnerstag, 9. Januar 2020 17:58
To: RPG programming on IBM i <rpg400-l@xxxxxxxxxxxxxxxxxx>
Subject: Re: JSON_OBJECT and Writing to IFS

I Found this link suggested changing to DBCLOB SQLType but now I Can't set
the _name, _nl, etc. They compile as undefined.


https://www.ibm.com/developerworks/community/forums/html/topic?id=5352adf0-9502-47e7-99a4-27124526243a


Thank you.

On Wed, Jan 8, 2020 at 3:24 PM Art Tostaine, Jr. <atostaine@xxxxxxxxx>
wrote:

Yes my job CCSID is 37.

On Wed, Jan 8, 2020 at 3:03 PM Bdietz400 <bdietz400@xxxxxxxxx> wrote:

Check your job’s CCSID. It should be 37 if in the US

--
Bryan Dietz

On Jan 8, 2020, at 12:35 PM, Art Tostaine, Jr.
<atostaine@xxxxxxxxx>

wrote:

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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