用oracle编写程序包，包中含有一个过程和一个函数

用oracle编写程序包，包中含有一个过程和一个函数

create or replace package pk2 is
procedure jobs(empid scott.emp.job%type,numbs out number);
function depts(deptid scott.emp.deptno%type) return number;
end pk2;
/
create or replace package body pk2 is
procedure jobs(empid scott.emp.job%type,numbs out number) is
begin
select count(*)
into numbs
from emp
where job = empid;
exception
when others then
numbs := 0;
end;
function depts(deptid scott.emp.deptno%type) return number is
numbs number;
begin
select count(*)
into numbs
from emp
where deptno = deptid;
return numbs;
exception
when others then
return 0;
end;
end pk2;
/

过程能够输出所有的student表的学生姓名（name字段）和学号（id字段）值。
函数能够根据传入的id参数，检索出该id值对应的学生姓名（name字段值），如果不存在，输出“该学生不存在”

create or replace package pk is
procedure p();
function f(i in number);
end pk;
/

create or replace package body pk is
procedure p()
is
cursor c is select id,name from student;
begin
for c_temp in c loop
dbms_out.putline(c_temp.id||c_temp.name);
end loop;
end p;
function f(i in number) return varchar2
is
a varchar2(20);
begin
select max(name) into a from student where id =i;
if a='' then
a='不存在的ID'
end if;
return a;
end f;
end pk;
/

没测试 可以参考下具体要求具体改吧