sql語句練習50題(Mysql版)--個人答案

一、查詢"01"課程比"02"課程成績高的學生的信息及課程分數web select s.*,s1.s_score,s2.s_score from student s, score s1,score s2 where s.s_id=s1.s_id and s1.s_id=s2.s_id and s1.c_id=‘01’ and s2.c_id=‘02’ and s1.s_score>s2.s_sco

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