NNO-00250：invalid administrative region description
错误码
错误描述：invalid administrative region description
错误原因：The server encountered an invalid administrative region description during startup. This error will prevent the server from starting. The administrative region description is stored in the server's names.ora configuration file.
解决方法：Make sure that the names.admin_region parameter in names.ora is correct. The names.ora file is automatically generated by the Oracle Network Manager, but administrators can edit the file at any time, introducing errors. If the file was never changed, contact Worldwide Customer Support.
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