Jeff Prom's SQL Server Blog

Sharing knowledge and tips on SQL Server, Business Intelligence and Data Management.

SSRS Divide by Zero

Posted by jeffprom on May 10, 2010

In SSRS you often have calculated fields that do division. To avoid having divide by zero errors, you may need to use IIF statements in the expression:
=IIF(Fields!column2.Value = 0, 0, Fields!column1.Value/Fields!column2.Value)
which means if the denominator is 0, show 0, otherwise show the calculated value.

Now for reasons unknown this only works if you are using integers. If you are using decimal values, then you will need to do some more work. The best approach I’ve seen is here, where Robert Bruckner provides a nice solution.

You would go to Report -> Report Properties -> Code and insert the following:

Public Function Divide(ByVal first As Double, ByVal second As Double) As Double
If second = 0 Then
Return 0
Return first / second
End If
End Function

Now you can do the following in your expression:
=IIF(Fields!column2.Value = 0, 0, Code.Divide(Fields!column1.Value, Fields!column2.Value))


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