摘要: select s1.sid from (SELECT sid,score from sc where cid='001') s1join (SELECT sid,score from sc where cid='002') s2 on s1.sid=s2.sidwhere s1.score > s2 阅读全文
posted @ 2020-10-21 20:48 亲爱的达瓦里氏 阅读(133) 评论(0) 推荐(0)