[Bug]: In OBOracle mode, archiving operations require DBA privileges.

[Jane201510]

ODC version

4.3.0

OB version

OB Oracle mode

What happened?

Under the OceanBase Oracle mode, users require DBA privileges to execute archiving tasks.

Oracle 模式下用户需要dba权限才能执行归档任务（需要判断目标表是否存在，就用到SYS库的查询权限）

What did you expect to happen?

No special permissions are required.

不需要特殊的权限

How can we reproduce it (as minimally and precisely as possible)?

In OBOracle mode, ordinary users without DBA privileges can perform data archiving.

在 OBOracle 模式下，使用非 dba 权限的普通用户进行数据归档。

Anything else we need to know?

No response