I have the following code in Access and I need it to work in sql, the Is numeric portion is throwing me off.
Sum([Employee Count]*IIf(IsNumeric([Length]),[Length
You will replace the IIF() with a CASE expression. The IsNumeric() is valid in SQL Server:
IIF()
CASE
Sum([Employee Count]* case when IsNumeric([Length]) = 1 then [Length] else 0 end) AS Total_hours,