title: mySQL Force Not Null using Query or phpMyAdmin
body: <p>Im using XAMP with mySQL and phpMyAdmin.</p>
  
  <p>I cant seem to work out how to set a column to NOT NULL in php my admin..</p>
  
  <p>How do i do this?</p>
  
  <p>Is there a quick way to set all columns not to be null in mySQL?</p>
  
  <p>I havve tried: <code>ALTER TABLE flights
  CHANGE FlightID NOT NULL;</code></p>
  
  <p>Thanks</p>