오라클 두 날짜 사이의 시간 분 계산
각설 하고 바로 예시. WITH T AS ( SELECT to_date('20190116' || '1830', 'yyyyMMddHH24mi') AS ed, to_date('20190116' || '1700', 'yyyyMMddHH24mi') AS bd FROM dual ) SELECT FLOOR((ed - bd)*24) hh, ( (ed - bd)*24 - FLOOR((ed - bd)*24) )*60 mm FROM t ; select day , hour - (day * 24) as hour , min - (hour * 60) as min , second - (min * 60) as second from (select START_DATE , END_DATE , trunc((END_DATE - START_D..