title: need to help to find time difference which is more than 6 hours in oracle
body: <p>I have table which has two columns like: start_date and end_date.</p>
  
  <p>sample value of start_time/end_time= 9/24/2019 12:22:43 AM.</p>
  
  <p>now i need to write a query which will throw the data where time_interval(end_date-start_date) is more than 6 hours.</p>