select
country_olympic_name,
SUM(part_gold) as 'Number of Gold Medals'
From
games.country,
games.participation
where
participation.country_isocode = country.country_isocode
group by
country_olympic_name;
我一直收到错误 ORA-00923: FROM 关键字未在预期的位置找到并且不知道为什么,请帮助