May 7, 2004 at 9:54 pm
Hi,
I am facing problem with following query.
Declare @Res int
Set @Res = 0
Select @Res = 5000/(0-0)
Select @Res as Result
If I execute the above query it gives me "Divide by zero error encountered" error . Instead of geting this error can i get Result as 0(whenever this error comes). Is there anyway to do this?
Regards,
Bobby(UserID=132570) <script language=JavaScript></script>
May 9, 2004 at 9:00 pm
This will give your desired reults without error.
Declare @Res int ,@denominator int
Set @Res = 0
Set @denominator = 0-0
Select @Res = CASE WHEN @denominator = 0 THEN 0 ELSE 5000/(@denominator) END
Select @Res as Result
May 9, 2004 at 11:01 pm
Hi,
Thanks . This solves my problem. But there is another poblem with this. In my application, all sql statements will be build by my front end. In these statements "/" operator might be there or not. Sometimes "/" operator may come more than once. Please have a look of some examples which my application is generated.
IF .00 > 0
begin
Select Result = 12000.00
end
ELSE
begin
Select Result = 0
end
IF 12000.00<6500
begin
Select Result = 12000.00*0.0175
end
ELSE
begin
Select Result = 0
end
Declare @Res int
Set @Res = 0
Select @Res = 12000.00
Select @Res as Result
Declare @Res int
Set @Res = 0
Select @Res = .00/(.00-.00)
Select @Res as Result
Now u suggest me how can I proceed. If i get a error "Divide by zero error encountered" how can i make that error as "0". My schedule is geting delayed because of this problem
Please help me in this.........
Bobby
May 10, 2004 at 12:04 am
If you want cannot change the code, but you want to ignore divide by zero errors (to get null instead), you can use the ARITHABORT and ANSI_WARNINGS settings, like this:
SET ARITHABORT OFF
SET ANSI_WARNINGS OFF
SELECT 1/0 -- you will get null
You will also get a warning (but not an error). If you want to suppress the warning too, use SET ARITHIGNORE ON.
Warning: using these options may cause some other problems, including the fact that you can't use indexes on computed columns.
My favourite way to handle such errors (without changing the default settings) is:
SELECT ISNULL(@a/NULLIF(@b,0),0)
Razvan
May 10, 2004 at 12:38 am
Hi Razvan,
Thanks a lot. As of now i am not using index in my database. Anyway thanks for giving me the warning. I will keep in mind.
Bobby
May 10, 2004 at 9:51 am
I'm not sure what "0-0" means. If your demonator is a variable or a computation involving variables than you can then you can do somthing like this:
delcare @res int (I assume you know that this will truncate the decimal portion of your result)
if @queryvar1 - @queryvar2 <> 0 begin
select @res = 5000 / @queryvar1 - queryvar2
else begin
select @res = 0
end
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