title: SQL developer create materialized views
body: <p>I want to create a materialized view with oracle SQL developer
  It should refresh hourly</p>
  
  <p>So i do this:</p>
  
  <p><a href="https://i.stack.imgur.com/DeQNR.jpg" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/DeQNR.jpg" alt="enter image description here"></a></p>
  
  <p>If it understand correctly, by setting "SPECIFY" as "When", and by setting 13:00:00 as "Start on" and 14:00:00 as "Next", the MV should refresh itself hourly</p>
  
  <p>But it doesn't work...</p>
  
  <p>Am i doing something wrong?</p>