Oracle 存储过程起步

 存储过程的注释不能写在第一行

select后面要有into

create or replace procedure DelEmp(v_empno in emp.empno%type) AS
No_result EXCEPTION;
salary varchar2(40);--nod 18-10-14
begin
delete from emp where empno=v_empno;
 select sum(sal) into salary from emp group by ename;
if sql%NOTFOUND THEN
    RAISE No_result;
    end if;
    DBMS_OUTPUT.PUT_LINE('编码为'||v_empno||'已删除！！！');
    COMMIT;
exception
     when No_result then
     DBMS_OUTPUT.PUT_LINE('你要的数据不存在，请确认是否为'||v_empno);
     WHEN others then
     DBMS_OUTPUT.PUT_LINE('其他错误，请确认输入');
END DelEmp;