this is the sort of query i want but it's generating too many results. I only wanted to know if this event_name is also in the table but with the other program.
I also need to add a column to indicate that it's in both programs.
select wv1.worker_role, wv1.event_name from event_worker_role_view wv1 where wv1.worker_role in('A29i Licensed')
and wv1.event_name = (select wv2.event_name from event_worker_role_view wv2 where
wv2.worker_role = 'A31 Service')
order by wv1.worker_role, wv1.event_name
the results: Msg 512, Level 16, State 1, Line 1
Subquery returned more than 1 value. This is not permitted when the subquery follows =, !=, <, <= , >, >= or when the subquery is used as an expression.