.
It would be much clearer if you used the articles consistently:This includes the logic, on
the B/L side,
of taking the 1st port_code_from (a table field) as
the port,
and
the last port_code_to as
the delivery port, from
the bl_route_legs table. This script has been
tested for such logic and
has been proven to be OK.
This is (?) to confirm that I've made and verified the change below.