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Identifing when an instance of 4 values are identical?

Posted: Thu Jun 04, 2009 8:10 pm
by netties001
Here's my question:

I have an order database where one of the columns has the price. I wish to identify groups of 4 prices being the same at £3.00 then deduct 2.00 off the final total price as a discount... Any idea's where I start?

Thanks in advance,
Adam. :drunk: