MySQL查詢語句練習2

沒有數據庫先執行50q數據庫web 查詢全部學生的Sname、Cno和Degree列. Select sname,cno ,degree from student inner join score on student.sno=scire.sno; 查詢「95033」班所選課程的平均分 Select cno,avg(degree) as avg from score where sno in(se

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