How to determine whether the number is float or integer in SQL Server?

Question

I need to write this query in sql server:

IF isFloat(@value) = 1
BEGIN
    PRINT \'this is float number\'
END
ELSE
BEGIN
    PRINT \'this is integer number\'
END         


        

Answer 1

Martin, under certain circumstances your solution gives an incorrect result if you encounter a value of 1234.0, for example. Your code determines that 1234.0 is an integer, which is incorrect.

This is a more accurate snippet:

if cast(cast(123456.0 as integer) as varchar(255)) <> cast(123456.0 as varchar(255)) 
begin 
  print 'non integer' 
end 
else 
begin 
  print 'integer' 
end

Regards,

Nico