How to properly handle exception in PL SQL?

Question

SQL

Hello. I have this piece of code:

select requests.phone_contact, requests.request_id 
    into l_phone, l_request_id
    from requests where requests.phone_contact = '9129766943';
  exception when NO_DATA_FOUND then
    dbms_output.put_line('no data');
  
  DBMS_OUTPUT.PUT_LINE('test');

If the query does not find a record, both the exception message and the message below are displayed. If the exception does not fire, the console is empty.
Can you please tell me what I'm doing wrong and how to properly handle this exception?
Thanks in advance to all who respond.

Answer 1

From here:
The link has an example of how you can continue the execution of the script through sub-blocks.

Answer 2

and enable debug mode?

Answer 3

What's in the Laravel logs? They are in the storage/logs/ folder , if anything.