I would like to subtract the difference between two time intervals, e.g.:
I have
DECLARE FROM_TIME DATE = TO_DATE('03.12.2015:09:00','DD.MM.YYYY:HH24:MI'),
        TO_TIME DATE = TO_DATE('03.12.2015:10:24','DD.MM.YYYY:HH24:MI');
How do I get the difference (01:24) in time between FROM_TIME and TO_TIME?
Thanks in advance.
 
    