I would explain the purpose of the prodedure and why it is implemented and make sure that the staff member understood and why their participation is crucial to reach the outcome and their benefit by following the procedure! also fill out the coaching and counseling form for their accountability in their action.
inner join is intersection, full outer join is union. i.e., "A inner join B an A.a = B.b" gives all combinations of rows where A's a column is not null, B's b column is not null, and they are the same. "A full outer join B on A.a = B.b" in addition gives all rows where A has an a that B doesn't have, or B has a b that A doesn't have -- the fields of the table that has no match are set to null in the resulting records in these cases.
there has only been one time that i had to deal .with an irate customer. she was being really rude and i kept saying I'm sorry ma'am and I gave her what she wanted but she just keep on so i went and got my manager but after that everything went fine