Question

I am new to the site and I have a question regarding some code I have in Access form that I am redoing in SQL Server 2008 and it has SUM, IIF, and IsNumeric all in one line and I am confused as to how to rewrite this in SQL.

Sum([Employee COUNT]*IIf(IsNull([2011]),0,CDbl([2011]))*IIf(IsNumeric([Length]),CDbl([Length]),0)) AS Cost

Answer 1

I believe this will do what you need:

Sum([Employee COUNT]
    * (case 
            when [2011] Is Null 
            then 0 
            else cast([2011] as float) 
        end)
    * (case 
            when IsNumeric([Length])= 1 
            then cast([Length] as float) 
            else 0 
        end)) AS Cost