Posted by "php @ net mines" on 09/20/05 22:48

Hi all

I have a hotel booking system where for sppecific periods we have specific
availability

e.g. hotel_id, hotel_name, hotel_fromperiod, hotel_toperiod,
hotel_availablesinglerooms
1, Hilton, 20/06/05, 20/08/05, 20

We have a second table for recording the bookings

e.g.hotel1_id, hotel1_name, hotel1_fromperiod, hotel1_toperiod,
hotel1_availablesinglerooms
1, Hilton, 01/07/05, 20/07/05, 1
2, Hilton, 20/06/05, 25/07/05, 1
3, Hilton, 25/06/05, 27/06/05, 19
4, Hilton, 05/07/05, 05/08/05, 2

Let's say that someone wants to book from the 25/06/05 - 29/06/05 what kind
of function-SQL do I have to run to check whether there is availability?
(in this example there should be availability between 27 and 29 but not
between 25 and 27).

Is this way of structuring the easiest and more efficient?

Thank you

Mario

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