如何使动态选择行到列？

Question

我有这样的查询

select
    to_char(WAKTU,'DD-MM-RRRR HH24:MI') waktu, a.KODE_ALAT,
    min(case when aa.KODE_STATISTIK = 'HOIST' then a.NILAI else null end) HOIST,
    min(case when aa.KODE_STATISTIK = 'TROLLEY' then a.NILAI else null end) TROLLEY,
    min(case when aa.KODE_STATISTIK = 'GANTRY' then a.NILAI else null end) GANTRY,
    min(case when aa.KODE_STATISTIK = 'ENGINE' then a.NILAI else null end) ENGINE,
    min(case when aa.KODE_STATISTIK = 'COUNTER' then a.NILAI else null end) COUNTER
from 
    TRECORD_STATISTIK_ALAT a
left outer join 
    TALAT_STAT aa on aa.KODE_STATISTIK = a.KODE_STATISTIK
join 
    valat v on v.kode_alat=a.kode_alat
where 
    v.jenis_alat ='RTG' 
    and (waktu between to_date('24-11-2018','DD-MM-RRRR hh24:mi') and to_date('04-12-2018','DD-MM-RRRR hh24:mi'))
group by 
    a.waktu, a.KODE_ALAT
order by 
    a.waktu desc;

Data of KODE_STATISTIK是动态的，如何选择kode_statistik中所有talat_stat，在我的代码中，我必须声明所有kode_statistik。