title: How to exclude negative values in resul
body: <p>Please how can I get this query to exclude negative (-) values</p>
  
  <pre><code>SELECT Enrollment.Participant_ID
      ,Enrollment.Site
      ,Enrollment.ActualDelivery
      ,Forms.[2MonthQoL]
      ,[Enrollment].[ActualDelivery] + 70 AS Due
      ,DateDiff("d", [Due], DATE ()) AS DaysOverdue
  FROM Enrollment
  LEFT JOIN Forms ON Enrollment.Participant_ID = Forms.Participant_IDFK
  WHERE (
          ((Enrollment.ActualDelivery) IS NOT NULL)
          AND ((Forms.[2MonthQoL]) IS NULL)
          );
  </code></pre>
  
  <p><img src="https://i.stack.imgur.com/6OzWZ.jpg" alt="enter image description here"></p>