编程要求

数据库中已经存在三个基础表： student ( num integer,
name char(20), age integer, level integer, dept char(20) );

course ( id integer,
name char(20)

);

sel_course ( studentid integer,
courseid integer, score integer

);

创建存储过程，并调用； 1）创建存储过程proc01，在存储过程中创建一张名为tmp的表(如果该表已经存在，应该先将其删除)，然后把计算机学院(student.dept = 'cs')学生的学号、姓名及选修的课程名称插入到tmp表中； 2）调用存储过程proc01；

 --cstmpdrop procedureif exists proc01;CREATE PROCEDURE proc01()ASBEGINdrop tableif exists tmp;CREATE TABLE tmp(num integer,name char(20),course char(20));insert into tmp SELECT num, stu.name as name, c.name as courseFROM student stu, course c, sel_course swhere stu.num = s.studentid and c.id = s.courseid and stu.dept = 'cs'order by num, course;END/CALL proc01();