create cursor t1 (myc c( 2 ))
insert into t1 value ('a')
insert into t1 value ('b')
insert into t1 value ('r')
insert into t1 value ('t')
insert into t1 value ('w')
insert into t1 value ('q')

create cursor t2 (mym M)
insert into t2 values('f,b')
insert into t2 values('c,d')
insert into t2 values('e,a')

select t1.myc from t1,t2 where allt(t1.myc) $ t2.mym into cursor query
brow norm

select t1.myc from t1 where allt(t1.myc) $ (select mym from t2) into cursor query
brow norm

select t1.myc from t1 where t1.myc not in ;
     (select t12.myc from t1 t12,t2 where allt(t12.myc) $ t2.mym );
into cursor query nofilter