create table tq84_minus_1 (val number);
create table tq84_minus_2 (val number);
begin
insert into tq84_minus_1 values (1);
insert into tq84_minus_1 values (2);
insert into tq84_minus_1 values (2);
insert into tq84_minus_1 values (3);
insert into tq84_minus_1 values (3);
insert into tq84_minus_1 values (3);
insert into tq84_minus_1 values (4);
insert into tq84_minus_1 values (4);
insert into tq84_minus_1 values (4);
insert into tq84_minus_1 values (4);
------------------------------------
insert into tq84_minus_2 values (2);
insert into tq84_minus_2 values (3);
insert into tq84_minus_2 values (4);
insert into tq84_minus_2 values (4);
commit;
end;
/
select val from tq84_minus_1 minus all
select val from tq84_minus_2;
--
-- VAL
-- ----------
-- 1
-- 2
-- 3
-- 3
-- 4
-- 4
drop table tq84_minus_1;
drop table tq84_minus_2;