题解 | #将两个 SELECT 语句结合起来（一）#

select 
    t1.prod_id,
    t1.quantity
from 
    OrderItems  t1
where 
    t1.quantity = 100
union
select
    t2.prod_id,
    t2.quantity
from 
    OrderItems t2
where 
    t2.prod_id like 'BNBG%'