by Richard van Iwaarden.
Al, just one more question. What does $insql mean?
I translated the query to something I can directly use in SQL. However, $insql doesn't mean anything to me.
WHERE assign_submission.'userid' $insql AND assign_submission.'status' = 'submitted' AND assign.'grade' <> 0
AND assign_grades.'id' IS NULL OR assign_submission.'timemodified' > assign_grades.'timemodified')