Re: View challenge

> I suspect you left out a few details from your question. For instance,
> it appears a natural join on emp_schedule and workshift suffice for your
> view.

In the schedule table you have a column recur_interval that indicates the number of days for which the workshifts should recur. A natural join will only return the first occurrence. For example with the given rows in the tables,

schedule(1, 7)

workshift(1, 1, '2006-08-07 08:00', '2006-08-07 17:00') workshift(1, 2, '2006-08-08 08:00', '2006-08-07 17:00')

employee(1)

emp_schedule(1, 1, '2006-08-07', '2006-08-21')

the view should return

(1, '2006-08-07 08:00', '2006-08-07 17:00')
(1, '2006-08-08 08:00', '2006-08-08 17:00')
(1, '2006-08-14 08:00', '2006-08-14 17:00')
(1, '2006-08-15 08:00', '2006-08-15 17:00')

/Fredrik Bertilsson Received on Sat Aug 12 2006 - 08:34:26 CEST