Error Division By Zero In
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Division By Zero Error Crystal Reports
Business Learn more about hiring developers or posting ads with us Stack Overflow Questions Jobs Documentation Tags Users division by zero error php Badges Ask Question x 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 only takes a division by zero error excel minute: Sign up How to avoid the “divide by zero” error in SQL? up vote 188 down vote favorite 46 I have this error message: Msg 8134, Level 16, State 1, Line 1 Divide by zero error encountered. What is the best way to write SQL code so that I will never see this error message again? I could do either
Division By Zero Error In Sql
of the following: Add a where clause so that my divisor is never zero Or I could add a case statement, so that there is a special treatment for zero. Is the best way to use a NullIf clause? Is there better way, or how can this be enforced? sql sql-server sql-server-2005 sql-server-2008 share|improve this question edited Jan 6 at 19:50 Hooper 4241525 asked May 14 '09 at 6:06 Henrik Staun Poulsen 4,91331220 4 Perhaps some data validation is in order. –Anthony May 14 '09 at 19:17 add a comment| 15 Answers 15 active oldest votes up vote 351 down vote accepted In order to avoid a "Division by zero" error we have programmed it like this: Select Case when divisor=0 then null Else dividend / divisor End ,,, But here is a much nicer way of doing it: Select dividend / nullif(divisor, 0) ... Now the only problem is to remember the NullIf bit, if I use the "/" key. share|improve this answer edited Dec 20 '12 at 1:04 Community♦ 11 answered May 14 '09 at 6:10 Henrik Staun Poulsen 4,9133122
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Division By Zero Error Message
each other. Join them; it only takes a minute: Sign up Division by zero error up vote 3 down vote favorite 2 I have this code throwing up the error: http://stackoverflow.com/questions/861778/how-to-avoid-the-divide-by-zero-error-in-sql / $val2) * 100; $val2 = count($allcontent); $res = ( $val1 / $val2) * 100; // 1 digit after the decimal point $res = round($res, 1); // 66.7 echo "Success: "; echo $res; echo "%"; ?> I have tried adding this line: if ($res === 0) { echo "not eligible"; } but it still gives the error. any ideas? php division divide-by-zero share|improve this question edited Oct 18 '13 at 18:38 Kamiccolo 2,94611732 asked Oct 18 '13 http://stackoverflow.com/questions/19456652/division-by-zero-error at 18:29 Seth-77 871213 can you indent your code! –Jason OOO Oct 18 '13 at 18:30 sorry, its the way its written in the script! –Seth-77 Oct 18 '13 at 18:37 add a comment| 5 Answers 5 active oldest votes up vote 7 down vote accepted You'd want to check $val2 before the division occurs: share|improve this answer answered Oct 18 '13 at 18:34 Chris Rasco 2,10011018 add a comment| up vote 1 down vote if($val2!=0){ //Do it }else{ //Don't } share|improve this answer answered Oct 18 '13 at 18:30 undone 6,20232756 add a comment| up vote 1 down vote You have the following in your code: $val2 = count($allcontent); If the $allcontent array is empty, then the value of $val2 will be 0, and you will essentially be doing: $res = ( $val1 / 0) * 100; As expected, this will cause PHP to return the 'Division by zero' error. To make sure this doesn't happen, simply use an if statement: if ($val2 != 0) { $res = ( $val1 / $val2) * 100; // 1 digit afte
list of references, related reading or external links, but its sources remain unclear because it lacks inline citations. Please help to improve this article by introducing more precise citations. (April 2016) (Learn how and when to https://en.wikipedia.org/wiki/Division_by_zero remove this template message) The function y=1/x. As x approaches 0 from the right, y approaches infinity. As x approaches 0 from the left, y approaches negative infinity. In mathematics, division by zero is division where the divisor (denominator) is zero. Such a division can be formally expressed as a/0 where a is the dividend (numerator). In ordinary arithmetic, the expression has no meaning, as there is no number which, division by multiplied by 0, gives a (assuming a≠0), and so division by zero is undefined. Since any number multiplied by zero is zero, the expression 0/0 also has no defined value; when it is the form of a limit, it is an indeterminate form. Historically, one of the earliest recorded references to the mathematical impossibility of assigning a value to a/0 is contained in George Berkeley's criticism of infinitesimal calculus in The division by zero Analyst ("ghosts of departed quantities").[1] There are mathematical structures in which a/0 is defined for some a such as in the Riemann sphere and the projectively extended real line; however, such structures cannot satisfy every ordinary rule of arithmetic (the field axioms). In computing, a program error may result from an attempt to divide by zero. Depending on the programming environment and the type of number (e.g. floating point, integer) being divided by zero, it may generate positive or negative infinity by the IEEE 754 floating point standard, generate an exception, generate an error message, cause the program to terminate, result in a special not-a-number value, a freeze via infinite loop, or a crash. Contents 1 Elementary arithmetic 1.1 Early attempts 2 Algebra 2.1 Division as the inverse of multiplication 2.2 Fallacies 3 Calculus 3.1 Extended real line 3.1.1 Formal operations 3.2 Projectively extended real line 3.3 Riemann sphere 3.4 Extended non-negative real number line 4 Higher mathematics 4.1 Non-standard analysis 4.2 Distribution theory 4.3 Linear algebra 4.4 Abstract algebra 5 Computer arithmetic 6 Historical accidents 7 See also 8 References 8.1 Notes 8.2 Sources 9 Further reading Elementary arithmetic[edit] When division is explained at the elementary arithmetic level, it is often considered as splitting a set of objects in