I tnink you can get it to work with sign bit as well

SELECT grp, CTOBIN(MAX(BitorSql(grp, bitfld)), "4S") AS BitField ;
	FROM crsTest ;
	GROUP BY grp
RETURN

FUNCTION BitorSql(tnGroup, tnVal)
IF tnGroup <> pnGroup 
	pnResult = 0
	pnGroup = tnGroup
ENDIF	
pnResult = BITOR(pnResult, tnVal)
RETURN BINTOC(pnResult, "4S")

>Da
>
>>Correct but you know that I meant that, right? :).
>>