oracle异常处理00103 loop异常继续循环 异常处理选点

loop循环希望异常处理后继续，异常处理选点很重要。
CREATE OR REPLACE PROCEDURE P_G_ZTE_CELL_SUM41(V_BEGIN IN VARCHAR,
                                               V_END   IN VARCHAR) AS
  V_EXIST      INT;
  V_TIME_BEGIN DATE := TO_DATE(V_BEGIN, 'YYYY-MM-DD HH24');
  V_TIME_END   DATE := TO_DATE(V_END, 'YYYY-MM-DD HH24');

  TYPE T_VARRAY IS VARRAY(18) OF VARCHAR2(50);
  V_VAR T_VARRAY := T_VARRAY('PGZTECELLSUM0', 'PGZTECELLSUM1');
BEGIN
  FOR I IN 1 .. V_VAR.COUNT LOOP
    SELECT COUNT(1)
      INTO V_EXIST
      FROM USER_TABLES
     WHERE TABLE_NAME = V_VAR(I);
    IF V_EXIST > 0 THEN
      EXECUTE IMMEDIATE ('DROP TABLE ' || V_VAR(I));
    END IF;
  END LOOP;

  WHILE V_TIME_BEGIN <= V_TIME_END LOOP
    --检查记录数量
    DBMS_OUTPUT.PUT_LINE(TO_CHAR(V_TIME_BEGIN, 'YYYY-MM-DD HH24'));
    SELECT COUNT(1)
      INTO V_EXIST
      FROM G_ZTE_620_CELL
     WHERE COLLECTTIME = V_TIME_BEGIN;
    DBMS_OUTPUT.PUT_LINE('G_ZTE_620_CELL 记录数量: ' || V_EXIST);
 
    --求和插入小时表
    BEGIN
      --异常处理开始点
      INSERT INTO G_ZTE_620_CELL_H
        SELECT TRUNC(COLLECTTIME, 'HH24') COLLECTTIME,
               BSCID,
               SITEID,
               BTSID,
               sum(C100030001) C100030001,
               ...
               sum(C100030245) C100030245
          FROM G_ZTE_620_CELL
         WHERE TRUNC(COLLECTTIME, 'HH24') = V_TIME_BEGIN
         GROUP BY TRUNC(COLLECTTIME, 'HH24'), BSCID, SITEID, BTSID;
      COMMIT;
    EXCEPTION
      WHEN DUP_VAL_ON_INDEX THEN
        DBMS_OUTPUT.PUT_LINE('G_ZTE_620_CELL_H 试图插入重复数据，已经阻止。'); -- ORA-00001 SQLCODE = -1 向唯一索引中插入重复数据
    END; --异常处理结束点
    DBMS_OUTPUT.PUT_LINE('G_ZTE_620_CELL_H 按小时求和完成');
    V_TIME_BEGIN := V_TIME_BEGIN + 1 / 24;
 
  END LOOP;

END;