Here is what i have to try and do:
Use INTERSECT and a subselect to display Coach ID and Coach Name for those coaches who live in Oshawa and that DO NOT have a team assigned to them.
the fields CoachId is in the table called tblCoaches and same with a field called CoachCity. The CoachId is also in another table called tblTeams but the field is called TeamCoach instead.
Here is what i have so far:
select coachname from tblcoaches
where coachcity='oshawa'
(select coachid from tblcoaches
intersect
select teamcoach from tblteams)