SQL

  select * from rms_linkset
where STATEFLAG=0
and CITY_ID=812
and SOURCE_SERVER||REMOTE_SERVER IN(
select SOURCE_SERVER||REMOTE_SERVER
from (
select SOURCE_SERVER,REMOTE_SERVER,count(*) from rms_linkset
where stateflag=0
and city_id=812
group by SOURCE_SERVER,REMOTE_SERVER
having count(*)>1))
order by SOURCE_SERVER,REMOTE_SERVER