PLS-00049错误

Question

我正在尝试将审计添加到Oracle数据库中的表中，但我一直收到PLS-00049错误。下面是我的脚本：

CREATE OR REPLACE TRIGGER gfmdev.audit_feature_performance
BEFORE INSERT OR UPDATE
ON gfmdev.feature_performance
FOR EACH ROW
DECLARE
    osuser  VARCHAR2(8);
BEGIN
    --
    -- get who is making the DML change from the session
    --
    osuser := session_info.osuser;
    --
    IF (NOT (dbms_snapshot.i_am_a_refresh)
    AND dbms_reputil.replication_is_on) THEN
            IF NOT dbms_reputil.from_remote THEN
                IF INSERTING THEN
                    :new.created_by := osuser;
                    :new.creation_date := sysdate;
                    :new.last_updated_by := osuser;
                    :new.last_updated_date := sysdate;
                END IF;
                --
                IF UPDATING THEN
                    :new.last_updated_by := osuser;
                    :new.last_updated_date := sysdate;
                END IF;
            END IF;
    END IF;

EXCEPTION
    WHEN OTHERS THEN
            -- raise error if we cannot set auditing fields
            raise_application_error(-20505, 'audit_feature_performance Failed. Rolling Back.' || SQLERRM);
END;

抛出的错误是：

PLS-00049: bad bind variable 'NEW.LAST_UPDATED_BY'
PLS-00049: bad bind variable 'NEW.LAST_UPDATED_DATE'
PLS-00049: bad bind variable 'NEW.LAST_UPDATED_BY'
PLS-00049: bad bind variable 'NEW.LAST_UPDATED_BY'
PLS-00049: bad bind variable 'NEW.LAST_UPDATED_DATE'

我不明白为什么会发生这种情况。在这方面的任何帮助都是非常感谢的。

Answer 1

尝试：

created_by := osuser；:new.creation_date := sysdate；:new.last_updated_by := osuser；:new.last_updated_date

alter table gfmdev.feature_performance add (
created_by  varchar2(100),
creation_date date,
LAST_UPDATED_BY varchar2(100),
LAST_UPDATED_DATE date
)
/

然后执行create trigger命令，或者重新编译它。

Answer 2

尝试使用REFERENCING OLD AS OLD NEW AS NEW。

CREATE OR REPLACE TRIGGER gfmdev.audit_feature_performance
BEFORE INSERT OR UPDATE ON gfmdev.feature_performance
REFERENCING OLD AS OLD NEW AS NEW
FOR EACH ROW
DECLARE