题解 | #将两个 SELECT 语句结合起来（一）#
将两个 SELECT 语句结合起来（一）
https://www.nowcoder.com/practice/a33d5c0ebf434e00b22e2977a5aa3a90
select a.prod_id,a.quantity from ( select prod_id,quantity from OrderItems where quantity=100 union select prod_id,quantity from OrderItems where prod_id regexp '^BNBG') a order by a.prod_id;
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