title: RAISE_APPLICATION_ERROR doesn't return the message
body: <pre><code>IF l_value = 'FALSE' THEN
    RAISE_APPLICATION_ERROR(-20299, 'some error message');
  END IF;
  </code></pre>
  
  <p>This is part of table trigger. It should return me a error number and message, but when alert pops out it returns only message number. No 'some error message'. Whats wrong</p>