甲骨文 01843.00000 - "not a valid month"

ORACLE 01843. 00000 - "not a valid month"

CREATE TABLE  EventRequest(      
  EVENTNO VARCHAR2(8) constraint EventNoNotNull Not Null,
  DATEHELD DATE constraint DateHelNotNull Not Null,
  DATEREQ DATE CONSTRAINT DateReqNotNull Not Null,
  CUSTNO VARCHAR2(8),
  FACNO VARCHAR2(8),
  DATEAUTH DATE,
  STATUS VARCHAR2(16) CONSTRAINT StatusNotNull Not Null,
  ESTCOST VARCHAR2(30) CONSTRAINT EstCost Not Null,
  ESTAUDIENCE VARCHAR2(8) CONSTRAINT EstAudienceZero CHECK (ESTAUDIENCE>0),
  BUDNO VarCHar2(8),

  CONSTRAINT PK_EventRequest primary Key (EventNo),
  constraint fk_EventCustNo Foreign Key (CustNo) REFERENCES Customer (CustNo),
  constraint fk_EventFacNo foreign key(FacNo) References Facility (FacNo),
  CONSTRAINT checkinstatus CHECK (Status in ('Approved', 'Denied', 'Pending'))
);

这是我要插入的 table

Insert into EVENTREQUEST(EVENTNO, DATEHELD, DATEREQ, 
                         CUSTNO, FACNO, DATEAUTH,
                         STATUS, ESTCOST, ESTAUDIENCE, BUDNO)
values ('E100', to_date('25-OCT-13','DD-MON-RR'), to_date('06-JUN-13','DD-MON-RR'),
        'C100', 'F100',  to_date('08-JUN-13','DD-MON-RR'),
        'Approved', 5000, 80000, 'B1000');

我在 VirtualBox 上使用 Sql 开发人员和 Oracle 开发人员日。 我也用这个命令改变了我的会话,但什么也没发生

ALTER SESSION SET NLS_DATE_FORMAT = 'DD-MON-RR HH24:MI:SS';

通过以下命令解决:alter session set nls_language=AMERICAN;