Vern,
Thank you! That works perfect...
However, the API developer added a parameter to the call that causes it to respond with element names. I was going to try something new, but it was too easy to complete the task with DATA-INTO.
Thanks to all! I learned something.
Greg
-----Original Message-----
From: RPG400-L <rpg400-l-bounces@xxxxxxxxxxxxxxxxxx> On Behalf Of VERNON HAMBERG Owner via RPG400-L
Sent: Tuesday, July 18, 2023 11:00 AM
To: rpg400-l@xxxxxxxxxxxxxxxxxx
Cc: VERNON HAMBERG Owner <vhamberg@xxxxxxxxxxxxxxx>; rpg400-l@xxxxxxxxxxxxxxxxxx
Subject: RE: JSON un-named arrays
Greg
You need to add with chg at the end of the statement - there might be other commit settings one could use, but that's what I and others here have used.
Good luck
Vern
On Tue, 18 Jul, 2023 at 8:06 AM, Greg Wilburn <gwilburn@xxxxxxxxxxxxxxxxxxxxxxx> wrote:
To: rpg programming on ibm i
Vern,
That's what I tried... I get an SQL Error: SQL State 42926, Sql0443 LOB and XML locators are not allowed with commit(*none).
I can't find how to overcome that.
Greg
-----Original Message-----
From: RPG400-L <rpg400-l-bounces@xxxxxxxxxxxxxxxxxx<mailto:rpg400-l-bounces@xxxxxxxxxxxxxxxxxx>> On Behalf Of VERNON HAMBERG Owner via RPG400-L
Sent: Monday, July 17, 2023 6:17 PM
To: rpg400-l@xxxxxxxxxxxxxxxxxx<mailto:rpg400-l@xxxxxxxxxxxxxxxxxx>
Cc: VERNON HAMBERG Owner <vhamberg@xxxxxxxxxxxxxxx<mailto:vhamberg@xxxxxxxxxxxxxxx>>; rpg400-l@xxxxxxxxxxxxxxxxxx<mailto:rpg400-l@xxxxxxxxxxxxxxxxxx>
Subject: RE: JSON un-named arrays
Hi Greg
As for how to do this with stream file, if you mean how do you process a JSON file in the IFS, there is an SQL function that can pull the JSON file in to be processed - it's used where Daniel has "insert your json here" - here's an example - JSON_TABLE(Get_CLOB_From_File(:xmlFilePath),
HTH
Vern
On Mon, 17 Jul, 2023 at 4:05 PM, Greg Wilburn <gwilburn@xxxxxxxxxxxxxxxxxxxxxxx<mailto:gwilburn@xxxxxxxxxxxxxxxxxxxxxxx>> wrote:
To: rpg programming on ibm i
Thanks Daniel!
With this API, the Data portion is only dynamic based on my call to the REST web service (I passed the value in the "fields" as a parameter to the web service).
I'm willing to try something new (and I like Run SQL Scripts)...
Just curious how I would use this with a stream file on the IFS? I like to save my latest response on the IFS.
Thx,
Greg
-----Original Message-----
From: RPG400-L <rpg400-l-bounces@xxxxxxxxxxxxxxxxxx<mailto:rpg400-l-bounces@xxxxxxxxxxxxxxxxxx><mailto:rpg400-l-bounces@xxxxxxxxxxxxxxxxxx<mailto:rpg400-l-bounces@xxxxxxxxxxxxxxxxxx>>> On Behalf Of Daniel Gross
Sent: Monday, July 17, 2023 4:19 PM
To: RPG programming on IBM i <rpg400-l@xxxxxxxxxxxxxxxxxx<mailto:rpg400-l@xxxxxxxxxxxxxxxxxx><mailto:rpg400-l@xxxxxxxxxxxxxxxxxx<mailto:rpg400-l@xxxxxxxxxxxxxxxxxx>>>
Subject: Re: JSON un-named arrays
Hi Greg,
I don't know, if it helps, but you can walk the whole JSON document with SQL without problems.
select *
from json_table(
'{...insert.your.json.here...}',
'lax $'
columns (
records integer path '$.records',
fields varchar(1000) path '$.fields',
nested path 'lax $.data[*]'
columns (
trano integer path '$[0]',
ref varchar(50) path '$[1]',
duedate decimal(8, 0) path '$[2]',
name varchar(50) path '$[3]',
amount decimal(10, 2) path '$[4]'
)
)
) as json_doc;
As you can see, the named parts are referenced by ".name", whereas the "unnamed" JSON elements have no named reference, but only the "[index]". The nested path reference is the JSON equivalent of an table JOIN.
Of course - if the "data" part of the JSON is dynamic, and you have to detect the columns be the "fields" element, it can get a but complicated.
But even then, you can first split the "fields" list into its elements, an then construct a dynamic SQL to extract the "data" parts.
So from my POV - SQL is often the easier solution - especially because you can test it with Run SQL Scripts until everything is "perfect".
HTH and kind regards
Daniel
Am 17.07.2023<http://17.07.2023><http://17.07.2023<http://17.07.2023>> um 17:31 schrieb Greg Wilburn <gwilburn@xxxxxxxxxxxxxxxxxxxxxxx<mailto:gwilburn@xxxxxxxxxxxxxxxxxxxxxxx><mailto:gwilburn@xxxxxxxxxxxxxxxxxxxxxxx<mailto:gwilburn@xxxxxxxxxxxxxxxxxxxxxxx>>>:
Typically, I use DATA-INTO and the YAJLINTO parser... But I'm not sure if that's possible with the JSON below. The array "data" contains an un-named array of values.
Any suggestions on how handle reading this?
Do I need to use the YAJL "tree-based" method?
{
"records": 4,
"fields": "trano,ref,duedate,name,amount",
"data": [
[
1,
"40061433",
20230719,
"Mudpie",
187.2<http://187.2><http://187.2<http://187.2>>
],
[
2,
"40061349",
20230719,
"kiddywampus",
156.21<http://156.21><http://156.21<http://156.21>>
],
[
3,
"40062677",
20230721,
"Chase",
70.8<http://70.8><http://70.8<http://70.8>>
],
[
4,
"40061703",
20230723,
"Stamford Toys",
110.7<http://110.7><http://110.7<http://110.7>>
]
]
}
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