题解 | #检索并列出已订购产品的清单#

select order_num,prod_id,quantity from OrderItems  where quantity >=100 and prod_id  in ('BR01','BR02' ,'BR03') order by order_num ,quantity desc

注意：

1 字符型的值 要加“”

2 筛选出某个字段xx中的aa，bb，使用 where xx in ('aa','bb')