PLSQL使用SQLCODE和SQLERRM的小例子

开始

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; 

EXCEPTION
  WHEN OTHERS THEN
      err_num := SQLCODE;
      err_msg := SUBSTR(SQLERRM, 1, 100);
      DBMS_OUTPUT.PUT_LINE(err_num||'----'||err_msg);
END;

运行结果：

anonymous block completed
100----ORA-01403: no data found

结束