title: sql trigger print message
body: <p>I am new at using triggers in database, and I created some triggers that worked very well for me except that when I tried to create a trigger that will show a message after deleting a row.</p>
  
  <p>I tried using this code:</p>
  
  <pre><code>ALTER TRIGGER "mycustomerTrigger" 
  AFTER delete ON customers
  FOR EACH ROW
  BEGIN ATOMIC
  print 'trigger is working'
  END
  </code></pre>
  
  <p>when I created this trigger it doesn't give error message, but when I delete a row it doesn't show the message that I print.</p>