col STARTUP_TIME for a19
col VERSION for a11
col DB_NAME for a8
col INSTANCE_NAME for a15
col HOST_NAME for a12
  
select INSTANCE_NUMBER, 
to_char(STARTUP_TIME, 'DD/MM/YYYY HH24:MI:SS') as STARTUP,
VERSION, 
DB_NAME, 
INSTANCE_NAME, 
HOST_NAME 
from DBA_HIST_DATABASE_INSTANCE
order by STARTUP_TIME;