SQL ISZERO() And NULLIF() For Dividing By Zero

CREATE FUNCTION IsZero (
	@Number FLOAT,
	@IsZeroNumber FLOAT
)
RETURNS FLOAT
AS
BEGIN
 
	IF (@Number = 0)
	BEGIN
		SET @Number = @IsZeroNumber
	END
 
	RETURN (@Number)
 
END

For Cut-and-Paste