I want to display in my CMD console, ONLY the success message if my request its OK:

Example :

```
  BEGIN
  INSERT / UPDATE .... //request
  EXCEPTION
  WHEN successful_completion THEN RAISE NOTICE 'INFO : MESSAGE RESQUEST IS OK ';
  END;

```

THIS MY CODE EDIT:

```
        DO $$ 
            BEGIN
                BEGIN
                    UPDATE user set age = 22 , date_inscription =  '2018-01-30' where id = 154;
                EXCEPTION
                WHEN ??? THEN ????
               END;
               RAISE NOTICE 'INFO : L''age  et date inscription ont été mis à jour';  // MESSAGE OK
            END;
            $$

```