Convert interval to minutes

Question

Let\'s suppose I have 2 intervals:

INTERVAL \'0 00:30:00\' DAY TO SECOND
INTERVAL \'0 04:00:00\' DAY TO SECOND

What is the most elegant way

Answer 1

Reusing Rob's example above,

select (sysdate-(sysdate-to_dsinterval(my_interval)))*24*60 from t;