FF
将两个 SELECT 语句结合起来（一）
https://www.nowcoder.com/practice/a33d5c0ebf434e00b22e2977a5aa3a90
select
prod_id,
quantity
from
OrderItems
where
quantity = 100
union all #保证两条语句的列相同即可
select
prod_id,
quantity
from
OrderItems
where
prod_id like 'BNBG%'
