ORA-12444: policy already applied to table ORACLE 报错 故障修复 远程处理
文档解释
ORA-12444: policy already applied to table
Cause: You tried to apply a policy to a table that was already protected by the policy.
Action: To change the policy options, predicate, or label function, remove the policy from the table and re-apply it.
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ORA-12444:策略已经应用到表说明
ORA-12444是在Oracle数据库中应用策略时出现的一个错误码,它表明您尝试为某个表应用策略,但该策略已经应用到该表了。
官方解释
ORA-12444:策略已经应用到表。
常见案例
当您尝试使用Oracle的DBMS_RLS(动态数据库安全性)过程,来执行类似添加等级保护执行者之类的任务时,这个错误可能会发生,因为该表已经有策略被应用到它了。
正常处理方法
要解决ORA-12444错误,需要删除表上已应用的策略,然后重新尝试添加策略。例如:
步骤1:调用dbms_rls.drop_policy函数来删除表上已应用的策略:
EXECUTE dbms_rls.drop_policy(object_schema => ‘username’, object_name => ‘tabname’, policy_name => ‘policyname’);
步骤2:执行dbms_rls.add_policy函数,来再次尝试添加策略:
EXECUTE dbms_rls.add_policy(object_schema => ‘username’, object_name => ‘tabname’, policy_name => ‘policyname’, enabled => ‘YES’, statement_types => ‘SELECT’, command_type => ‘SELECT’);