SQLite数据库错误“（”

Question

此查询在SQLite数据库中提供以下错误

(select course_id
from section
where semester = 'Spring' and year = 2010)
intersect
(select course_id
from section
where semester = 'Fall' and year = 2009)

错误：接近“（”：语法错误：

但是，当我删除括号时，它可以正常工作。

select course_id
from section
where semester = 'Spring' and year = 2010
intersect
select course_id
from section
where semester = 'Fall' and year = 2009

有什么想法吗？