Oracle ORA-04098:触发器“triggername”无效，重新验证失败

您好，我已经创建了一个触发器，如下所示，但它给出了以下错误：

ORA-04098: trigger 'APPS.EMP_delete' is invalid and failed re-validation

我的代码：

CREATE OR REPLACE TRIGGER emp_delete
AFTER DELETE
   ON EMP
   FOR EACH ROW

BEGIN

INSERT INTO history_emp   (EMPLOYEE_ID, SALARY, JOB_ID, HIRE_DATE, DEPARTMENT_ID, FIRST_NAME,     last_name, DELETED_BY, DELETION_DATE)
   VALUES
   (:OLD.EMPLOYEE_ID,
     :OLD.SALARY,
     :OLD.JOB_ID,
     :OLD.HIRE_DATE,
     :OLD.DEPARTMENT_ID,
     :OLD.FIRST_NAME,
     :OLD.LAST_NAME,
        USER,
    SYSDATE);

    DELETE FROM BACKUP_EMP WHERE EMPLOYEE_ID = :OLD.EMPLOYEE_ID;

END;

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如何修复此错误？

这意味着您在“APPS.EMP\u delete”触发器中有一些错误，无法自动重新激活。你需要检查你的扳机是否有任何问题。

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例：历史记录中所有列的名称是否正确？

创建触发器时会出现什么错误？或者在查询用户错误时？执行以下操作并将结果粘贴到问题b编辑中。从user_errors中选择*type='TRIGGER'，name='EMP_DELETE'；