oracle 插入数据不成功报错

在公司做数据库维护，需要在某表插入一批数据，大部分都插入成功，却有小部分无法插入并报错，求大神解答
以下是部分插入语句
insert into td_trunk_in(SWITCH_CODE,TRUNKGROUP,TRUNK_TYPE,START_DATE,END_DATE,TRUNKGROUP_CONVERT) values ('H01','4904','2H','20190122','29991231','B_PD_SHGS91_1');
insert into td_trunk_in(SWITCH_CODE,TRUNKGROUP,TRUNK_TYPE,START_DATE,END_DATE,TRUNKGROUP_CONVERT) values ('H01','4905','2H','20190122','29991231','B_PD_SHGS91_2');
insert into td_trunk_in(SWITCH_CODE,TRUNKGROUP,TRUNK_TYPE,START_DATE,END_DATE,TRUNKGROUP_CONVERT) values ('H01','4906','2H','20190122','29991231','B_QZ_SHGS91_1');
insert into td_trunk_in(SWITCH_CODE,TRUNKGROUP,TRUNK_TYPE,START_DATE,END_DATE,TRUNKGROUP_CONVERT) values ('H01','4907','2H','20190122','29991231','B_QZ_SHGS91_2');
insert into td_trunk_in(SWITCH_CODE,TRUNKGROUP,TRUNK_TYPE,START_DATE,END_DATE,TRUNKGROUP_CONVERT) values ('H01','4908','2H','20190122','29991231','B_PD_SHGS92_1');
首先表的键肯定没有违反 绝对没有重复数据以下是报错涉及的触发器
CREATE OR REPLACE TRIGGER "TIB_TD_TRUNK_IN"  BEFORE insert ON SETTLE.TD_TRUNK_IN
  FOR EACH ROW
DECLARE
  V_SWITCH_CODE        SETTLE.TD_TRUNK_IN.SWITCH_CODE%type;
  V_TRUNKGROUP        SETTLE.TD_TRUNK_IN.TRUNKGROUP%type;
  V_TRUNK_TYPE        SETTLE.TD_TRUNK_IN.TRUNK_TYPE%type;
  V_START_DATE        SETTLE.TD_TRUNK_IN.START_DATE%type;
  V_END_DATE        SETTLE.TD_TRUNK_IN.END_DATE%type;
  V_TRUNKGROUP_CONVERT SETTLE.TD_TRUNK_IN.TRUNKGROUP_CONVERT%type;BEGIN
  V_SWITCH_CODE        := :NEW.SWITCH_CODE;
  V_TRUNKGROUP        := :NEW.TRUNKGROUP;
  V_TRUNK_TYPE        := :NEW.TRUNK_TYPE;
  V_START_DATE        := :NEW.START_DATE;
  V_END_DATE        := :NEW.END_DATE;
  V_TRUNKGROUP_CONVERT := :NEW.TRUNKGROUP_CONVERT;  IF (:NEW.SWITCH_CODE = 'H01') THEN
    UPDATE SETTLE.TD_TRUNK_IN
       SET END_DATE = V_START_DATE
     WHERE SWITCH_CODE IN ('H01', 'H02')
       and TRUNKGROUP = V_TRUNKGROUP
       and TRUNK_TYPE = V_TRUNK_TYPE;    INSERT INTO SETTLE.TD_TRUNK_IN
      (SWITCH_CODE,
       TRUNKGROUP,
       TRUNK_TYPE,
       START_DATE,
       END_DATE,
       TRUNKGROUP_CONVERT)
    VALUES
      ('H02',
       V_TRUNKGROUP,
       V_TRUNK_TYPE,
       V_START_DATE,
       V_END_DATE,
       V_TRUNKGROUP_CONVERT);    UPDATE SETTLE.TD_TRUNK_OUT
       SET END_DATE = V_START_DATE
     WHERE SWITCH_CODE IN ('H01', 'H02')
       and TRUNKGROUP = V_TRUNKGROUP
       and TRUNK_TYPE = V_TRUNK_TYPE;    INSERT INTO SETTLE.TD_TRUNK_OUT
      (SWITCH_CODE,
       TRUNKGROUP,
       TRUNK_TYPE,
       START_DATE,
       END_DATE,
       TRUNKGROUP_CONVERT)
    VALUES
      ('H01',
       V_TRUNKGROUP,
       V_TRUNK_TYPE,
       V_START_DATE,
       V_END_DATE,
       V_TRUNKGROUP_CONVERT);    INSERT INTO SETTLE.TD_TRUNK_OUT
      (SWITCH_CODE,
       TRUNKGROUP,
       TRUNK_TYPE,
       START_DATE,
       END_DATE,
       TRUNKGROUP_CONVERT)
    VALUES
      ('H02',
       V_TRUNKGROUP,
       V_TRUNK_TYPE,
       V_START_DATE,
       V_END_DATE,
       V_TRUNKGROUP_CONVERT);
  END IF;  IF (V_SWITCH_CODE = 'H03') THEN
    UPDATE SETTLE.TD_TRUNK_IN
       SET END_DATE = V_START_DATE
     WHERE SWITCH_CODE IN ('H03', 'H04')
       and TRUNKGROUP = V_TRUNKGROUP
       and TRUNK_TYPE = V_TRUNK_TYPE;    INSERT INTO SETTLE.TD_TRUNK_IN
      (SWITCH_CODE,
       TRUNKGROUP,
       TRUNK_TYPE,
       START_DATE,
       END_DATE,
       TRUNKGROUP_CONVERT)
    VALUES
      ('H04',
       V_TRUNKGROUP,
       V_TRUNK_TYPE,
       V_START_DATE,
       V_END_DATE,
       V_TRUNKGROUP_CONVERT);    UPDATE SETTLE.TD_TRUNK_OUT
       SET END_DATE = V_START_DATE
     WHERE SWITCH_CODE IN ('H03', 'H04')
       and TRUNKGROUP = V_TRUNKGROUP
       and TRUNK_TYPE = V_TRUNK_TYPE;    INSERT INTO SETTLE.TD_TRUNK_OUT
      (SWITCH_CODE,
       TRUNKGROUP,
       TRUNK_TYPE,
       START_DATE,
       END_DATE,
       TRUNKGROUP_CONVERT)
    VALUES
      ('H03',
       V_TRUNKGROUP,
       V_TRUNK_TYPE,
       V_START_DATE,
       V_END_DATE,
       V_TRUNKGROUP_CONVERT);    INSERT INTO SETTLE.TD_TRUNK_OUT
      (SWITCH_CODE,
       TRUNKGROUP,
       TRUNK_TYPE,
       START_DATE,
       END_DATE,
       TRUNKGROUP_CONVERT)
    VALUES
      ('H04',
       V_TRUNKGROUP,
       V_TRUNK_TYPE,
       V_START_DATE,
       V_END_DATE,
       V_TRUNKGROUP_CONVERT);
  END IF;END;