Re: Validating JSON Data in a Host Variable

You neither need accessing a table nor an additional Common Table
Expression

Exec SQL Set :IsJSON = Case When :HostVar is JSON Object Then '1' Else '0'
End;

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 [mailto:rpg400-l-bounces@xxxxxxxxxxxx] On Behalf Of Buck
Calabro
Sent: Donnerstag, 1. Februar 2018 18:38
To: rpg400-l@xxxxxxxxxxxx
Subject: Re: Validating JSON Data in a Host Variable

On 2/1/2018 3:51 AM, Craig Richards wrote:

But if you just have the document in a Host Variable, is there an easy
way to validate it?

dcl-s testVar char(1024);
dcl-s isJSON char(1);

isJSON = '*'; // eyecatcher
testVar =
'{-
"message": "Hello!",-
"destination": "world"-
}';


exec sql
with test_json (json_string) as
( values(:testVar) )
select
case
when json_string is json object
then 'Y'
else 'N'
end as valid_json
into :isJSON
from test_json
;

dsply sqlstate;
dsply isJSON;

*inlr = *on;

--
--buck

http://wiki.midrange.com
Your updates make it better!

--
This is the RPG programming on the IBM i (AS/400 and iSeries) (RPG400-L)
mailing list To post a message email: RPG400-L@xxxxxxxxxxxx To subscribe,
unsubscribe, or change list options,
visit: https://lists.midrange.com/mailman/listinfo/rpg400-l
or email: RPG400-L-request@xxxxxxxxxxxx
Before posting, please take a moment to review the archives at
https://archive.midrange.com/rpg400-l.

Please contact support@xxxxxxxxxxxx for any subscription related
questions.

Help support midrange.com by shopping at amazon.com with our affiliate
link:
http://amzn.to/2dEadiD

--
This is the RPG programming on the IBM i (AS/400 and iSeries) (RPG400-L)
mailing list
To post a message email: RPG400-L@xxxxxxxxxxxx
To subscribe, unsubscribe, or change list options,
visit: https://lists.midrange.com/mailman/listinfo/rpg400-l
or email: RPG400-L-request@xxxxxxxxxxxx
Before posting, please take a moment to review the archives
at https://archive.midrange.com/rpg400-l.

Please contact support@xxxxxxxxxxxx for any subscription related
questions.

Help support midrange.com by shopping at amazon.com with our affiliate
link: http://amzn.to/2dEadiD