select a.F_AIRPROT, a.F_THREECODE, a.F_CAPACITY, a.F_AIRPORT_LEVEL
from T_AIRPORT_LEVEL a
where (a.F_AIRPROT, a.F_THREECODE/* , a.F_CAPACITY, a.F_AIRPORT_LEVEL*/) in
(select L.F_AIRPROT , L.F_THREECODE/*, L.F_CAPACITY , L.F_AIRPORT_LEVEL*/
from T_AIRPORT_LEVEL L
group by L.F_AIRPROT,
L.F_THREECODE,
L.F_CAPACITY,
L.F_AIRPORT_LEVEL
having count(*) > 1)
delete from T_AIRPORT_LEVEL a
where (a.F_AIRPROT, a.F_THREECODE) in
(select L.F_AIRPROT, L.F_THREECODE
from T_AIRPORT_LEVEL L
group by L.F_AIRPROT,
L.F_THREECODE,
L.F_CAPACITY,
L.F_AIRPORT_LEVEL
having count(*) > 1)
and rowid not in (select min(rowid)
from T_AIRPORT_LEVEL LL
group by LL.F_AIRPROT,
LL.F_THREECODE,
LL.F_CAPACITY,
LL.F_AIRPORT_LEVEL
having count(*) > 1)