John,

you need a criteria for get a row for equal SalesDate ,MaxAmount .
On next example i use MAX(SalesNo), but others are possible;
also RECNO() is possible, but it is probably an ugly one chosen
if reported to database tables.

CREATE CURSOR Sales ( SalesNo c(6), SalesDate D,Amount Y)
INSERT INTO sales VALUES ('A00001',{^2003/01/01},$100)
INSERT INTO sales VALUES ('A00002',{^2003/01/01},$200)
INSERT INTO sales VALUES ('A00003',{^2003/01/02},$100)
INSERT INTO sales VALUES ('A00004',{^2003/01/01},$200)

SELECT MAX(SalesNo), SalesDate, Amount AS MaxAmount ;
FROM Sales S WHERE Amount >= ALL (SELECT Amount FROM Sales WHERE SalesDate=S.SalesDate) ;
GROUP BY 2,3;
INTO CURSOR MaxForDay1

SELECT MAX(SalesNo), SalesDate, Amount AS MaxAmount ;
FROM Sales S WHERE Amount=(SELECT MAX(Amount) FROM Sales X WHERE X.SalesDate=S.SalesDate) ;
GROUP BY 2,3;
INTO CURSOR MaxForDay2

Fabio