.SQL作业:第三章:课后习题2:(1)select sno,sname from student where height1.80(2)select cno,credit from course where semester=秋 and cno like CS%;(3)select sname,o,credit,grade from student s,course c,scwhere s.sno=sc.sno and o=o and o like CS% and sex=男and semester=秋and grade is not null(4)select sname from student s,scwhere s.sno=sc.sno and cno like EE% and sex=女 or:select sname from student s,scwhere s.sno=sc.sno and cno like EE% and