帶有去重以及字符串拼接、日期拼接、字段相除的SQL語句

select b.shipname as 船舶名稱,a.mmsi as MMSI,a.callsign as 呼號,a.imo as IMO,c.name as 船舶類型, (a.loa/10) || '米' as 船長,(a.beam/10) || '米' as 船寬,(a.draught/1000) || '米' as 吃水,trunc(f.HDG/1000) || '度' as 船首向, (f.COG/100) || '度' as 船跡向, TO_CHAR(f.SOG,'FM99990.0999') || '節' as 航速,f.LAT as 緯度,f.LON as 經度, f.DEST as 目的地,to_date(extract(year from sysdate)|| f.ETA,'yyyy-MM-dd HH24:mi:ss') as 預到時間,f.lasttime as 數據更新時間 from ship_basic a left join ship_yhbasic b on a.shipid = b.mmsi left join ship_type c on a.shiptype = c.code left join ( select e.*
from (select d.*, row_number() over(partition by d.shipid order by d.creatortime desc) rw
from ship_dynamicdata d) e where e.rw = 1 ) f on a.shipid = f.shipid ORDER BY b.shipname