I have a rather simple SQL statement, but I can't get it to work properly. I have four columns in the activities table "LoginID", "StartDateTime" , "StopDateTi me", and "ProjectID" . In a second table, Projects, I have "ProjectID" and "ProjectNam e". The goal of the SQL statement is to join the two ProjectID together, and get the difference in the stop and start time and any projects that...