6、查询学过“001”并且也学过编号“002”课程的同学的学号、姓名：SELECT st.SId,st.StuName FROM(SELECT t1.SId AS SId FROM (SELECT s1.SId FROM sc s1 WHERE s1.CId = '001')t1,(SELECT s2.SId FROM sc s2 WHERE s2.CId = '002')t2 WHERE t1.SId = t2.SId )stu, student st WHERE stu...