摘要: 每个文章,每个人对其进行评分,计算每个文章评分总和 select Aclass,(select sum(Bid) as Bclassnum from tabB where Bclass=Aclass) as Aclassnum from tabA order by Aclassnum desc 阅读全文
posted @ 2021-04-01 10:13 程序员小艺 阅读(383) 评论(0) 推荐(0) 编辑