--------------------------表結構--------------------------學習
student(StuId,StuName,StuAge,StuSex) 學生表spa
teacher(TId,Tname) 教師表code
course(CId,Cname,C_TId) 課程表blog
sc(SId,S_CId,Score) 成績表class
----------------------------------------------------------查詢
問題十四:查詢和「1002」號的同窗學習的課程徹底相同的其餘同窗學號和姓名di
SELECT StuId,StuName FROM student WHERE StuId= ANY( SELECT SId FROM sc WHERE SId NOT IN (SELECT SId FROM sc WHERE S_CId NOT IN (SELECT S_CId FROM sc WHERE SId='1002')) GROUP BY SId HAVING COUNT(*)= (SELECT COUNT(*) FROM sc WHERE SId='1002') ) AND StuId<>'1002';
答案僅供參考,不必定徹底正確,若發現錯誤或有更好的,歡迎評論,互相交流,一塊兒成長!!!co