By default, Monday is a working day in the ISO calendar. The following query adds an OFF exception for January 1, 2007, which is a Monday.
Exec DBC.CreateException('ISO', 'OFF', date '2007-01-01', 'Newyear Day');
The following query returns the next working day after January 1, 2007:
Sel BusinessWeekBegin from Sys_Calendar.BusinessCalendar where calendar_date = date '2007-01-01'; BusinessWeekBegin ----------- 07/01/02