Oracle SQL Group według daty roku
SELECT value1, extract(YEAR FROM my_date)
FROM my_table
GROUP BY value1, extract(YEAR FROM my_date);
VasteMonde
SELECT value1, extract(YEAR FROM my_date)
FROM my_table
GROUP BY value1, extract(YEAR FROM my_date);Select count(1), country_of_sale, to_char(datefield, 'YYYY-MM') AS yyyymm
from table
where country_of_sale IN ('USA', 'EUROPE', 'ASIA')
group by country_of_sale, to_char(datefield, 'YYYY-MM')
order by to_char(datefield, 'YYYY-MM');