数据库teaching中包含student(studentno,sname,sex,birthday,point,phone,email)、class(classno,classname,department,monitor)、course(courseno,cname,type,period,credit),score(studentno,courseno,usually,final)、teacher(teacherno,tname,major,prof,department)、teach_class(teacherno,classno,courseno)六张表,请完成下面习题: 查询表student中所有学生的所有信息。