# 方法一: select order_num,prod_id,quantity from OrderItems where (prod_id = 'BR01' or prod_id = 'BR02' or prod_id = 'BR03') and quantity >=100; # 方法二: select order_num,prod_id,quantity from OrderItems where prod_id in('BR01','BR02','BR03') and quantity >=100; # 方法三 select order_num,prod_id,q...