ORA-06547: INSERT, UPDATE 或 DELETE 语句必须使用 RETURNING 子句
产生这个错误的原因：
returning into子句作用于insert，update，delete，上而select则不行，应该用into。
报错的存储如下：
create or replace procedure p_stu_info(s_id number, s_name varchar2) is
v_name varchar2(10);
v_age number;
v_ErrMsg varchar2(200);
begin
execute immediate 'select name,age from student_test where id=:1 and name=:2'
using s_id, s_name
returning into v_name, v_age;
dbms_output.put_line(v_name || '的年龄为：' || to_char(v_age));
exception
when others then
v_ErrMsg := SUBSTRB(SQLERRM, 1, 200);
dbms_output.put_line('找不到相应学生');
end p_stu_info;
改成下面这样就ok了：
create or replace procedure p_stu_info(s_id number, s_name varchar2) is
v_name varchar2(10);
v_age number;
v_ErrMsg varchar2(200);
begin
execute immediate 'select name,age from student_test where id=:1 and name=:2'
into v_name, v_age
using s_id, s_name;
dbms_output.put_line(v_name || '的年龄为：' || to_char(v_age));
exception
when others then
v_ErrMsg := SUBSTRB(SQLERRM, 1, 200);
dbms_output.put_line('找不到相应学生，错误原因：'||v_ErrMsg);
end p_stu_info;