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create table t as select 'A' as name, 100 as amount from dual union all select 'A' as name, 100 as amount from dual union all select 'A' as name, -100 as amount from dual union all select 'A' as name, 100 as amount from dual union all select 'A' as name, 100 as amount from dual union all select 'A' as name, -100 as amount from dual union all select 'B' as name, 10 as amount from dual union all select 'A' as name, 100 as amount from dual
8 rows affected
select t.name, t.amount from (select t.*, sum(amount) over (partition by name, abs(amount), seqnum) as sum_amount from (select t.*, row_number() over (partition by name, amount order by name) as seqnum from t ) t ) t where sum_amount <> 0;
NAME
AMOUNT
A
100
A
100
A
100
B
10