At the request of application scope of problem.

Hi, I am trying to use the PL/JSON package on my apex application. It has been installed and configured for access public (it may be necessary in different patterns on the DB, in addition to the apex) with this command:

--types grant execute on json to public; create or replace public synonym json for json; grant execute on json_list to public; create or replace public synonym json_list for json_list; grant execute on json_value to public; create or replace public synonym json_value for json_value; grant execute on json_value_array to public; create or replace public synonym json_value_array for json_value_array; --packages grant execute on json_ext to public; create or replace public synonym json_ext for json_ext; grant execute on json_parser to public; create or replace public synonym json_parser for json_parser; grant execute on json_printer to public; create or replace public synonym json_printer for json_printer;

And tested with this example from github site:

declare obj json; begin obj := json('{"a": true }'); obj.print; --more complex json: obj := json(' { "a": null, "b": 12.243, "c": 2e-3, "d": [true, false, "abdc", [1,2,3]], "e": [3, {"e2":3}], "f": { "f2":true } }'); obj.print; obj.print(false); --compact way end;

Now, if I run this script on the console to a different schema, it works fine. If I run it from the console SQL Workshop on the apex of the IDE (such as apex_public_user) works fine too, but if I create an Application process run on demand (which runs as apex_public_user), with the same code and then call the process of javascript like this:

var get = new htmldb_Get(null,$v('pFlowId'),'APPLICATION_PROCESS=P4_JSON_TEST',0); 
alert(get.get());

Just to see the result. And all that I get an exception was thrown:

ORA-06550: line 19, column 13: 
PLS-00222: no function with name 'PRINT' exists in this scope 
ORA-06550: line 19, column 5: 
PL/SQL: Statement ignored

The strange thing is that the exception, it is not been lifted by the declaration of the json object, nor the instantiation, but by printing called function. Which brings back me to my question: who is part of a process of application on request? (or what I'm doing wrong).

Database version:

Oracle Database 11 g Release 11.2.0.4.0 - 64 bit Production

Apex version:

Oracle Application Express 4.2

Thank you for your time.

Hi DelayLama,

DelayLama wrote:

Hi @Kiran, thanks for the reply, actually I did what recommended you, I copy the example on the web page and I forgot to add the changes, this is the actual code:

declare

JSON obj;

Start

obj: = json ("{"a": true}");

obj. Print;

-more complex json:

obj: = json (')

{

'a': null,

'b': 12.243,.

'c': 2-3.

"d": [true, false, 'abdc', [1,2,3]],.

« e » : [3, {« e2 » : 3}],

"f": {

"f2": true

}

}');

HTP. PRN (obj. Print (false)); -way compact

end;

Also, I tried what @Edwin suggested, but the problem persists.

The obj.print returns a string? I doubt it because it is a wrapper for dbms_output. I think that, as obj.print is scheduled to run only in kind of SQL Developer more/SQL environments.

In the context of Oracle APEX, you write a process on demand Application and he expects you to return a string. Try the simple example to build the string json in a variable and return that, mentioned above and let me know if it works.

Kind regards

Kiran

Tags: Database

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