求数据库查询语句,可以追加200分!!!答:from sc where cname like'%系统%';2.select sno,sname,cno,cname,grade from student,sc where ssex='1'union select sno,sname,cno,cname,grade from student,sc where sno='95013';3.update sc set grade=grade+10 where grade<60;4.delete from course where cname='数据库';5.insert ...