sql select records having count > 1 where at lease one record has value

Question

I\'m trying to get all participants that have more than 1 record in the table where at lease one of those records has IsCurrent = 0 and IsActive = 1

This is what I have

Answer 1

select 
  ParticipantId
from Contact as c
group by
  ParticipantId
having 
  Count(*) > 1
  and
  Sum(Case when IsCurrent = 0 then 1 else 0 end) >= 1
  and
  Sum(Case when IsActive = 1 then 1 else 0 end) >= 1

I would first try this