Error Ssrs Divide By Zero
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Sql Server Divide By Zero Error Encountered
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them; it only takes a minute: Sign up SSRS Expression Divide by Zero Error up vote 13 down vote favorite 5 I have a tablix box that has a division expression. When dividing by zero or nulls I get #Error displayed in my report. I tried to create an IIF statement and tested with static values. This verified my ssrs divide by zero custom code syntax was correct but I still see the error on my reports. =IIF(Sum(Fields!CY_Dollars.Value)=0, 0, (Sum(Fields!CY_Dollars.Value) - Sum(Fields!PY_Dollars.Value))/(Sum(Fields!PY_Dollars.Value))) So I'm taking Current year dollars, subtracting Previous year dollars, and dividing that total by previous year dollars to get the percentage change. Is there a trick to this that I'm not getting?! reporting-services ssrs-tablix ssrs-expression share|improve this question edited Dec 3 '15 at 5:16 pedram 3,31131840 asked Oct 4 '13 at 19:19 d90 3342415 You mentioned that there are nulls in your data? Try nesting each field call in a NULL replacement function. For example, I would the format IIF(Fields!PY_Dollars.Value = Nothing, 0, Fields!PY_Dollars.Value = Nothing) for each Fields!PY_Dollars.Value in the current formula. Better yet, handle the nulls in the source query instead. –Eric Hauenstein Oct 4 '13 at 19:59 The condition in your IIF statement is not checking for zero denominator (you are checking for zero in CY, not PY value). Instead, try: =IIF(Sum(Fields!PY_Dollars.Value)=0, 0, (Sum(Fields!CY_Dollars.Value) - Sum(Fields!PY_Dollars.Value))/(Sum(Fields!PY_Dollars.Value))) –rpyzh Feb 14 '14 at 3:23 add a comment| 2 Answers 2 active old
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or posting ads with us Stack Overflow Questions Jobs Documentation Tags Users Badges Ask Question x nan ssrs Dismiss Join the Stack Overflow Community Stack Overflow is a community of 4.7 million programmers, just like you, helping each other. Join them; it #error in ssrs report only takes a minute: Sign up divide by zero/null workaround in SSRS 2008 report up vote 11 down vote favorite 3 I have a report with a field whose value was the expression: Fields!TotalPrice.Value/Fields!TotalSlots.Value Although sometimes TotalSlots was blank and http://stackoverflow.com/questions/19189132/ssrs-expression-divide-by-zero-error thus I was getting a divide by zero runtime error. So I changed the expression to this: =IIF(Fields!TotalSlots.Value > 0, Fields!TotalPrice.Value/Fields!TotalSlots.Value,"unknown") but I'm still getting a divide by zero error. How do I work around this zero divisor issue. sql reporting-services ssrs-2008 share|improve this question edited May 3 '12 at 15:13 Diego 17.8k63888 asked May 3 '12 at 13:45 jsmith 26721023 add a comment| 4 Answers 4 active oldest votes up vote 12 down vote accepted The VB IIF evaluates http://stackoverflow.com/questions/10432714/divide-by-zero-null-workaround-in-ssrs-2008-report all arguments, so it will throw an error if any argument throws an error: Your formula can be written as: =IIF(Fields!TotalSlots.Value > 0, Fields!TotalPrice.Value / IIF(Fields!TotalSlots.Value > 0, Fields!TotalSlots.Value, 1 ), "unknown") Then even when TotalSlots is zero, the formula still won't encounter a division problem. share|improve this answer edited May 4 '12 at 14:12 answered May 3 '12 at 16:39 Jamie F 14.8k33052 1 It may not apply here, but what about cases where the divisor can be negative? –Homer Jul 10 '13 at 14:52 2 Replace both occurences of > 0 with <> 0 and you should be fine for negative divisors. –Jamie F Jul 10 '13 at 15:06 add a comment| up vote 17 down vote Jamie F's answer is correct. As a tip, you can add a function to your report code to make the division a bit easier to implement in multiple cells, e.g. Public Function Divider (ByVal Dividend As Double, ByVal Divisor As Double) If IsNothing(Divisor) Or Divisor = 0 Return 0 Else Return Dividend/Divisor End If End Function You can then call this in a cell like so: =Code.Divider(Fields!FieldA.Value, Fields!FieldB.Value) share|improve this answer edited May 4 '12 at 2:19 answered May 4 '12 at 1:28 Nathan 6,33221734 add a comment| up vote 1 down vote I don't think your error is on the calculation. First of all, SSRS deals automatically with this situation. See my third column. And t
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single IIf statement does not work because it evaluates both results before deciding which one to act on. For example, when the denominator is 0, this returns an error: =IIf ( Fields!Denominator.Value = 0 ,NOTHING ,Fields!Numerator.Value / Fields!Denominator.Value ) (Actually, it either returns "#Error", "Infinity", "-Infinity", or "NaN" depending on the data types involved. My next blog post will provide more detail on that. Let's assume in this blog that the numerator and denominator are both DECIMAL, which will result in "#Error" when the denominator is zero.) Pros and Cons Here are the pros and cons of the different techniques. If you have some more insight on one of these, or know of another technique, let me know in the comments. Technique #1 - Nested IIf Statement The first and most commonly used workaround is the nested IIf statement: =IIf ( Fields!Denominator.Value = 0 ,NOTHING ,Fields!Numerator.Value / IIf ( Fields!Denominator.Value = 0 ,1 ,Fields!Denominator.Value ) ) As you can see, this works because when the FALSE condition of the first IIf is evaluated, it does not try to divide by zero. Technique #2 - Math Trick =IIf ( Fields!Denominator.Value = 0 ,NOTHING ,Fields!Numerator.Value * (Fields!Denominator.Value ^ -1) ) As you know, in algebra: X * (Y ^ -1) = X * (1 / Y) = X / Y So it is the same as dividing by the denominator. But why does it work when the denominator is 0? This works because (0 ^ -1) evaluates to "Infinity" in SSRS regardless of the data type. Be aware this does not work in other places, like T-SQL: Or the plain ol' Windows calculator: Or the TI-83 calculator: Interestingly, however, it does work in PowerShell: I would never expect this to work because it doesn't really make mathematical sense! Dividing by zero and raising 0 to the power of -1 are supposed to be the same thing. If you are a stickler for math, you may be a little hesitant to use this trick in your reports. Technique #3 - Custom Code You may prefer to return 0 instead of NOTHING. If so, you have the additional option of using custom code: ............................ Public Shared Function SafeDivision(ByVal numerator as Decimal, ByVal denominator As Decimal) As Decimal If denominator = 0 Then SafeDivision = 0 Else SafeDivision = numerator / denominator End If End Function ............................ =Code.SafeDivision(1,