title: Triggers -- The specified event type(s) is/are not valid on the specified target object
body: <p>I'm trying to learn about triggers. I'm trying to create a DDL Trigger by creating a new query </p>
  
  <pre><code>create trigger triggername
  on quickdb
  for create_table
  as 
  begin
  print 'new table created'
  end
  </code></pre>
  
  <p>but I keep getting</p>
  
  <blockquote>
    <p>The specified event type(s) is/are not valid on the specified target object</p>
  </blockquote>