title: apex oracle validation solution
body: <p>I need 3 validations for my apex oracle database application and can't seem to find the solution.</p>
  
  <ul>
  <li>validation so that the field cannot be Null</li>
  <li>Validation so that the number entered must be between 1 and 1000 </li>
  <li>Validation so that the date of birth cannot be after <code>5/6/2018</code>  (<code>dd // mm / yyyy</code> format)</li>
  </ul>
  
  <p>These validations are used in the form using CREATE VALIDATION in the edit page</p>