对PLSQL的SQL%NOTFOUND的再验证

开始

想要知道，是否在一条SQL执行完毕之后，有否机会在接下来的程序运行段看SQL%NOTFOUND的值。

事实上，它立即跳到了异常段。

SET SERVEROUTPUT ON;

DECLARE 

  v_ename emp.ename%TYPE;

  e_norecord EXCEPTION;

  PRAGMA EXCEPTION_INIT (e_norecord, -20001);



  err_num NUMBER;

  err_msg VARCHAR2(100);



BEGIN

  

  SELECT ename INTO v_ename FROM emp where empno=3000;

  

  IF SQL%NOTFOUND THEN

     DBMS_OUTPUT.PUT_LINE('I can not found!');

     RAISE_APPLICATION_ERROR(-20001,'No records found!');

  END IF;



EXCEPTION

  WHEN e_norecord THEN

      DBMS_OUTPUT.PUT_LINE('Yes! No records found!!');



  WHEN OTHERS THEN

      err_num := SQLCODE;

      err_msg := SUBSTR(SQLERRM, 1, 100);

      DBMS_OUTPUT.PUT_LINE(err_msg||err_num);

END;

运行的结果：

anonymous block completed

ORA-01403: no data found100

结束