Най-простият метод вероятно е union all
:
select id, sum(value), min(data)
from t
where id is not null
group by id
union all
select id, value, data
from t
where id is null;
Най-простият метод вероятно е union all
:
select id, sum(value), min(data)
from t
where id is not null
group by id
union all
select id, value, data
from t
where id is null;