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SQL 2005 View. How to calculate a view expression column with more details

I am trying to further narrow down an expression in a view.  Below is the expression:

dbo.Payments.AmountPaid - (dbo.InvoiceDetails.Usage * dbo.InvoiceDetails.Price + ISNULL((dbo.InvoiceDetails.TRate / 100) * (dbo.InvoiceDetails.Price * dbo.InvoiceDetails.Usage), 0))

I want to take the above expression and make the outcome 0 if AmountPaid is 0.
Only when there is an amoutpaid is when I want to see the value else 0.

Thanks
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mphillip85
Asked:
mphillip85
1 Solution
 
Guy Hengel [angelIII / a3]Billing EngineerCommented:
case when dbo.Payments.AmountPaid  = 0 then 0 else dbo.Payments.AmountPaid - (dbo.InvoiceDetails.Usage * dbo.InvoiceDetails.Price + ISNULL((dbo.InvoiceDetails.TRate / 100) * (dbo.InvoiceDetails.Price * dbo.InvoiceDetails.Usage), 0)) end
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