摘要: 统计所有班级各科的平均值: select BanJi,AVG(A) as 语文, AVG(B) as 数学, AVG(C) as 英语 from oprScore GROUP BY BanJi 阅读全文
posted @ 2022-12-19 16:27 673613920 阅读(321) 评论(0) 推荐(0) 编辑