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HomeDatabaseMysql Tutorial解决ORA-O4O89:无法对sys拥有的对象创建触发器

这两天学习oracle的触发器,创建触发器的时候时不时会遇到:ldquo;无法对sys拥有的对象创建触发器rdquo;的错误提示。使用的用户

这两天学习Oracle的触发器,创建触发器的时候时不时会遇到:“无法对sys拥有的对象创建触发器”的错误提示。

使用的用户登录是自己创建的新用户XXX下登录,,之后再XXX用户下创建一个名为MECITY的表空间,接着在XXX用户下的MECITY表空间下创建名为CITYS的表。

然后,想给CITY表建立一个触发器,使每次插入数据时表的ID列会自动增加1。

创建触发器语句:

CREATE TRIGGER TRI_CITY_ID

BEFORE INSERT ON CITYS

FOR EACH ROW

BEGIN

SELECT CITY_ID.NEXTVAL INTO :NEW.ID FROM CITYS;

END;

错误提示:ORA-O4O89:无法对sys拥有的对象创建触发器。

首先在tables里面找到该表,右键查看该表的properties,里面有owner。出现上面这种情况一定是owner为sys。

下面提供一种解决方法:

为当前登录用户创建名称为该表名称相同的表,数据从sys的表里面拷贝。如:

CREATE TABLE XXX.CITYS AS SELECT * FROM SYS.CITYS;

然后删除掉sys底下的表。

DROP TABLE SYS.CITYS;

再执行创建触发器语句。

linux

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