-- 13、查询和“01“号的同学学习的课程完全相同的其他同学的信息

    科技2022-08-04  109

    SELECT st.* FROM student st LEFT JOIN score sc ON sc.s_id=st.s_id GROUP BY st.s_id HAVING GROUP_CONCAT(sc.c_id) = ( SELECT GROUP_CONCAT(sc2.c_id) FROM student st2 LEFT JOIN score sc2 ON sc2.s_id=st2.s_id WHERE st2.s_id ='01' )
    Processed: 0.010, SQL: 8