Simple way to prevent a Divide By Zero error in SQL

Question

I have a SQL query which used to cause a

Divide By Zero exception

I\'ve wrapped it in a CASE statement to stop this fr

Answer 1

The solution that I found to handle the divide by zero problem is to create a function that I can call upon to deal the situation, as I often have to perform some sort of ratio/ percentage type analysis. Here's the simple function that I wrote.

Create Function fnRatio(@Numerator decimal(10,2),@Demoninator decimal(10,2))

Returns decimal(10,2)

Begin

Return

Case 

      When @Demoninator = 0 then 0.00 



      When @Demoninator Is Null then Null



Else

      @Numerator/@Demoninator

End 

End

Regards

Jason