pretty: declare
jsn json_object_t;
begin
jsn := json_object_t.parse('{"num":42,"txt":"hello world!","ary":[1,1,2,3,5,8,13]}');
dbms_output.put_line(jsn.stringify(pretty=>true));
end;
/
--
-- {
-- "num" : 42,
-- "txt" : "hello world!",
-- "ary" :
-- [
-- 1,
-- 1,
-- 2,
-- 3,
-- 5,
-- 8,
-- 13
-- ]
-- }