Hi, I'm tring to run this query to find orphan entries. SELECT c.eventid, e.ID FROM col_links c left outer join calendar_v2 e ON c.eventid = e.ID LIMIT 0, 999; Then I have to scan the list to find entries where e.ID equals NULL. I was wondering if anyone know how to expand this query with a WHERE clause that would find just the orphan instances. Thanks, Keith