CODE EXAMPLE FOR SQL

différence entre deux dates sql oracle

 SQL> select 24 * (to_date('2009-07-07 22:00', 'YYYY-MM-DD hh24:mi') - to_date('2009-07-07 19:30', 'YYYY-MM-DD hh24:mi')) diff_hours from dual; DIFF_HOURS ---------- 2.5