Divide By Zero Error Encountered In Sql Query
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Divide By Zero Error Encountered In Sql Server
Us Learn more about Stack Overflow the company Business Learn more about hiring developers divide by zero error encountered in sql server 2012 or posting ads with us Stack Overflow Questions Jobs Documentation Tags Users Badges Ask Question x Dismiss Join the Stack divide by zero error encountered sql server 2008 Overflow Community Stack Overflow is a community of 4.7 million programmers, just like you, helping each other. Join them; it only takes a minute: Sign up How to avoid the “divide by zero”
Sql Divide By Zero Error Encountered Nullif
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 of the following: Add a where clause so that my divisor is never zero Or
Tsql Divide By Zero Error Encountered
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 4,89331220 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 350 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 4,89331220 that's the way I would have solved it. –J. Polfer May 14 '09 at 19:21 4 A much nicer Way of doing it "Select dividend / nullif(diviso
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Msg 8134 Level 16 State 1 Line 1 Divide By Zero Error Encountered
by zero error encountered SQL Server Error Messages - Msg 8134 - Divide by zero error encountered SQL Server oracle sql divide by zero Error Messages - Msg 8134 Error Message Server: Msg 8134, Level 16, State 1, Line 1 Divide by zero error encountered. Causes: This error is caused by performing a division operation wherein http://stackoverflow.com/questions/861778/how-to-avoid-the-divide-by-zero-error-in-sql the denominator or the divisor is 0. This error is not encountered when the denominator or divisor is NULL because this will result to a NULL value. Solution / Work Around: There are three ways to avoid the "Division by zero encountered" error in your SELECT statement and these are as follows: CASE statement NULLIF/ISNULL functions SET ARITHABORT OFF and SET ANSI_WARNINGS OFF Using http://www.sql-server-helper.com/error-messages/msg-8134.aspx the CASE statement, your query will look like the following: SELECT CASE WHEN [Denominator] = 0 THEN 0 ELSE [Numerator] / [Denominator] END AS [Percentage] FROM [Table1] If the denominator or divisor is 0, the result becomes 0. Otherwise, the division operation is performed. Using the NULLIF and ISNULL functions, your query will look like the following: SELECT ISNULL([Numerator] / NULLIF([Denominator], 0), 0) AS [Percentage] FROM [Table1] What this does is change the denominator into NULL if it is zero. Then in the division, any number divided by NULL results into NULL. So if the denominator is 0, then the result of the division will be NULL. Then to return a value of 0 instead of a NULL value, the ISNULL function is used. Lastly, using the SET ARITHABORT and SET ANSI_WARNINGS, your query will look like the following: SET ARITHABORT OFF SET ANSI_WARNINGS OFF SELECT [Numerator] / [Denominator] With both ARITHABORT and ANSI_WARNINGS set to OFF, SQL Server will return a NULL value in a calculation involving a divide-by-zero error. To return a 0 value instead of a NULL value, you can put the division operation inside an ISNUL
OK, some of the data I am using isnt playing nicely and once in a while I get Divide by zero error encountered. Divide by zero error encountered. Msg 8134, Level 16, State 1, Line 2 To avoid this I am using a https://ask.sqlservercentral.com/questions/22402/best-way-to-avoid-divide-by-zero.html CASE as: DECLARE @Int1 AS INT , @Int2 AS INT SET @Int1 = 6 SET http://sqlserverplanet.com/tsql/overcome-divide-by-zero-using-nullif @Int2 = 2 SELECT @Int1 / @Int2 SET @Int1 = 6 SET @Int2 = 0 SELECT @Int1 / CASE WHEN @Int2 = 0 THEN 1 ELSE @Int2 END is there a better way of getting the same results but without littering by nice tidy SELECT statements with hundreds of CASE WHEN ... THEN ... ELSE ... END's?? Am I missing some divide by super useful function that does this in one line? [edit]OK, thanks for the answers so far. I dont want to lose rows where it is zero so, I cant accept a NULL in its place or to filter out those rows with a WHERE @int20 I simply want to replace a 0 value with a 1 value... more ▼ 0 total comments 973 characters / 178 words asked Oct 14, 2010 at 08:54 AM in Default Fatherjack divide by zero ♦♦ 43.7k ● 79 ● 98 ● 117 edited Oct 14, 2010 at 11:03 AM add new comment (comments are locked) 10|1200 characters needed characters left ▼ Everyone Moderators Original poster and moderators Other... Viewable by all users 4 answers: sort voted first ▼ oldest newest voted first 0 You can use NULLIF if you want to return null when division by zero: SELECT @int1 / NULLIF(@int2,0) -- returns NULL or SELECT @int1 / ISNULL(NULLIF(@int2,0),1) -- returns @int1 The CASE statement is probably much faster then the second option, but you can test the performance more ▼ 11 total comments 288 characters / 46 words answered Oct 14, 2010 at 09:04 AM Håkan Winther 16.5k ● 36 ● 45 ● 57 edited Oct 14, 2010 at 09:07 AM Always though about CASE on this one. Good to know about NULLIF Oct 14, 2010 at 09:07 AM ozamora Håkan Winther Nope, the case statement is not any faster because NULLIF is the case statememt. The actuall NULLIF function definition is simply a case statement under the hood, but it has this nice compact form :) nullif (@a, @b) means case when @a = @b then null else @a end Oct 14, 2010 at 09:50 AM Oleg @Håkan Winther Please accept my apologies, It looks like I cannot see straight today, so I did not notice isnull. I do be
by Zero Using NULLIF Posted on April 5, 2012 by Derek Dieter 1 4 « A Query Method Faster Than BETWEENCreating Unique Random Numbers » Anytime we are dividing we need to think of the divide by zero scenario. Even if you think you will never encounter this with your result set, it's advisable to guard against it because when divide by zero is encountered, an error is thrown. The best method I've found to overcome this is by using the NULLIF function. This function takes two parameters and if they are equal, a NULL value is returned. Lets take a look at an example that throws a divide by zero error. DECLARE @iter FLOAT; DECLARE @num FLOAT SET @num = 10; SET @iter = 5; WHILE @iter > -5 BEGIN SELECT @num / @iter SET @iter = @iter - 1 END Running the following query, we see that once the variable @iter becomes zero, we receive an error. So the most elegant way to overcome this is to use NULLIF function and compare @iter to zero. When it does equal zero, it will instead change it to a null. And when dividing anything by NULL will equal a NULL. DECLARE @iter FLOAT; DECLARE @num FLOAT; SET @num = 10; SET @iter = 5; WHILE @iter > -5 BEGIN SELECT @num / NULLIF(@iter,0); SET @iter = @iter - 1; END This executes without error, however we still receive a null as a result. If you need otherwise, then you may want to wrap the equation in an ISNULL, to return a different value. DECLARE @iter FLOAT; DECLARE @num FLOAT; SET @num = 10; SET @iter = 5; WHILE @iter > -5 BEGIN SELECT ISNULL(@num / NULLIF(@iter,0),@num); SET @iter = @iter - 1; END This will just return the same number you are dividing by, if you encounter a NULL denominator. Filed under TSQL Related Posts: SQL Server For Each Row Next SQL Server Begin Try Concatenate Rows Using Coalesce Alter Index All Tables How to Concatenate SQL Rank SQL Replace Compare Stored Procedure Output by Creating a Test Harness Substring Between Two Characters Post a comment Comments (RSS) Trackback Permalink Click here to cancel reply. Name: Email: Comment: One comment Jiwa 29 Aug 2015 at 8:36 am ( 2012.02.11 08:02 ) : This feeder works great as long as you fololw the directions and complete ALL the steps for setting it up. After programming the current time, you set the times you w