Oleg Netchaev (11/18/2010)

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Also, it breaks miserably if the week is less than 10 because it makes an assumption that the format is yyyy-ww while in reality it could be yyyy-w....

In SQL Server 2008 R2 you could use a UDF like this:

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-- Author: Guus Endeveld

-- Create date: 18-11-2010

-- Description: Determine start...