我的桌子：

CREATE TABLE COUNTRY_CODE(
   ID NUMBER(19,0)      PRIMARY KEY NOT NULL,Code             VARCHAR2(2) NOT NULL,Description  VARCHAR2(50),created                  TIMESTAMP DEFAULT CURRENT_TIMESTAMP,created_by                   VARCHAR2(40) DEFAULT USER,last_updated                 TIMESTAMP DEFAULT CURRENT_TIMESTAMP,last_updated_by          VARCHAR2(40) DEFAULT USER,archived CHAR(1) DEFAULT '0' NOT NULL );

序列：

CREATE SEQUENCE COUNTRY_CODE_ID_SEQ START WITH 1 INCREMENT BY 1;

触发器：

CREATE OR REPLACE TRIGGER COUNTRY_CODE_TRIGGER
BEFORE INSERT ON COUNTRY_CODE
FOR EACH ROW
DECLARE
    max_id number;
    cur_seq number;
BEGIN
    IF :new.id IS NULL THEN
    SELECT COUNTRY_CODE_ID_SEQ.nextval
    INTO :new.id
    FROM dual;
ELSE
    SELECT GREATEST(NVL(MAX(id),0),:new.id)
    INTO max_id
    FROM COUNTRY_CODE;

    SELECT COUNTRY_CODE_ID_SEQ.nextval
    INTO cur_seq
    FROM dual;

    WHILE cur_seq < max_id
    LOOP
        SELECT COUNTRY_CODE_ID_SEQ.nextval
        INTO cur_seq
        FROM dual;
    END LOOP;
END IF;
END;

创建表和序列工作得很好,但是当我尝试创建我的触发器时,我得到这个错误：

Error report:
ORA-00603: ORACLE server session terminated by fatal error
ORA-00600: internal error code,arguments: [kqlidchg0],[],[]
ORA-00604: error occurred at recursive sql level 1
ORA-00001: unique constraint (SYS.I_PLSCOPE_SIG_IDENTIFIER$) violated
00603. 00000 -  "ORACLE server session terminated by fatal error"
*Cause:    An ORACLE server session is in an unrecoverable state.
*Action:   Login to ORACLE again so a new server session will be created

有没有人知道这个错误？

谢谢