One more to try

UPDATE Test SET n1 = Test.n1 * tm.f1m ;
	FROM Test JOIN ( ;
		SELECT t21.mx AS m1, t22.Mx AS m2, IIF(t21.f1 > t22.f1, t21.f1, t22.f1) AS f1m ;
			FROM Test2 t21, Test2 t22 ; 
		) tm ON tm.m1 = Test.m1 AND tm.m2 = Test.m2	

>
>again, I have a SQL Problem. This time it's an UPDATE:
>
>given
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