A simple question about use of the HAVING phrase. Here's a sample SELECT statement

Select  Partno		;
	, Sum (RealCost)	As RealCost		;
	, Sum (PostedCost) 	As PostedCost	;
	, Sum (RealCost - PostedCost)	As Variance		;
	, Sum (1)		As Count		;
	, Sum (NItems)	As NItems		;
	;
	from c_Source	                                          ;								;
	group By 1	;	;
	into Cursor c_Browse Readwrite

I'd like to be able to reference the RealCost field in the result in the HAVING phrase ... HAVING RealCost # 0 ... but I get an error message because of the name conflict with the field RealCost in the source cursor.

How can I refer to the RealCost field in the result cursor (in the HAVING phrase)?

Yes, I know I could choose a different name in the result cursor ... I'm hoping I don't have to.