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how to compare rows

Posted By:      Posted Date: December 04, 2010    Points: 0   Category :Sql Server
 

Hello,

I'm writing a query to produce a final report based on the number of days  product stays on the floor with the following logic:

1) if datediff  between r and s for the  same ctrl# is < = 5 then the charge is 0 and the remaining balance (if any) is a subject to a charge

2) if datediff between r and s for the same ctrl# is  > 5 then r is  subject to a charge and any  s > 5 is ignored

sample data set below, suggestions would be greatly appreciated!

ctrl# W date

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