Question

is there any way in oracle to calculate the difference between two time stamps value with time zones in oracle sql plus as it is not possible to use timestampdiff or datediff inside oracle.

Thanks

Answer 1

Consider the following in case you need the number of milliseconds between two timestamps:

  create or replace Function msecBetween
   (ts1 timestamp with time zone,
    ts2 timestamp with time zone,
    numDec number default 0
   )
  Return Number is
    i INTERVAL DAY(3) TO SECOND(3) := ts2 - ts1;
  Begin
    return round (
      +     extract( day    from i )*24*60*60*1000
      +     extract( hour   from i )*60*60*1000
      +     extract( minute from i )*60*1000
      +     extract( second from i )*1000
    , numDec);
  End;