Hello. I have two tables - one for Orders and one for discount.
Order:
OrderID, ProducerID, OrderDate, PurchasePrice
100,2,21.05.2016,1000
101,2,15.08.2016,1000
102,2,04.12.2016,1000
Discount:
ProducerID, ValidFromDate, Discount
2,01.05.2016,5 (valid from 01.05.2016-start of next date)
2,01.06.2016,6
2,01.07.2016,4
2,01.08.2016,7
I want to reduce the PurchasePrice by Discount based on the ProducerID AND Date comparision (is Orde.
How can I check the producer ID and correct date range to calculate the correct discount for the order?