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Home/ Questions/Q 573359
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Editorial Team
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Editorial Team
Asked: May 13, 20262026-05-13T13:42:57+00:00 2026-05-13T13:42:57+00:00

declare @a varchar(40) set @a=’1.23e-4′ declare @b decimal(27,12) if isnumeric(@a) =1 begin select @b=cast(@a

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declare @a varchar(40)
set @a='1.23e-4'
declare @b decimal(27,12)

if isnumeric(@a) =1
begin

    select @b=cast(@a as decimal(27,12))

end
else
begin
    select @b=-1
end

select @b

when exeucting above sql code under SQL 2005 environment I am getting following error.

Error converting data type varchar to numeric

anyone knows why?

thanks.

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1 Answer

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  1. Editorial Team
    Editorial Team
    2026-05-13T13:42:57+00:00Added an answer on May 13, 2026 at 1:42 pm
    SELECT  @b = CONVERT(REAL, @a, 2)
    

    Scientific notation only works on FLOAT and REAL.

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