select JSON_OBJECT(
KEY 'objects' VALUE
(SELECT JSON_ARRAYAGG(
JSON_OBJECT(
KEY 'object_type' VALUE object_type,
KEY 'object_name' VALUE object_name
)
)
FROM all_objects
)
)
from dual
ORA-40459: output value too large (actual: 4004, maximum: 4000)More Details: https://docs.oracle.com/error-help/db/ora-40459