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>>Thank you for clarifying. Sorry that I didn't pay attention to the semicolons. I will test this approach in both VFP and SQL Server. Initially I thought I would do it using a Function (with pretty much similar code that you wrote). But view is probably better approach (although I don't yet understand why).
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>> But view is probably better approach (although I don't yet understand why).
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>I think it is because a view is faster.
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>btw - I have used nvl() in case there are no invoices yet. I think the sqlserver equivalent is ISNULL()
http://msdn.microsoft.com/en-us/library/ms184325.aspxThank you for the NVL() and ISNULL() explanation.
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