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ORA-12211: TNS:needs PREFERRED_CMANAGERS entry in TNSNAV.ORA ORACLE 报错故障修复远程处理

2023-11-04 23:44

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文档解释

ORA-12211: TNS:needs PREFERRED_CMANAGERS entry in TNSNAV.ORA

Cause: TNSNAV.ORA does not have a PREFERRED_CMANAGERS defined.

Action: Add a PREFERRED_CMANAGERS entry to the TNSNAV.ORA file.

ORA-12211: TNS:needs PREFERRED_CMANAGERS entry in TNSNAV.ORA错误指示在tnsnames.ora文件中缺少PREFERRED_CMANAGERS值。这通常是由下面两个原因导致的：

1.当传输协议不一致时：客户试图使用不同于预期的传输协议连接到服务器。

2.当客户与服务器协议不一致时：客户机上安装的驱动程序与服务器上安装的驱动程序不一致。

所以，要解决此问题，您需要确保客户机和服务器上的传输协议保持一致，并将PREFERRED_CMANAGERS参数从TNSNAV.ORA文件添加到客户端的TNSNAV.ORA文件中。

正常处理方法及步骤

1.确保在客户端和服务器上使用相同的传输协议。

2.打开TNSNAV.ORA文件，并添加PREFERRED_CMANAGERS值。

3.重新启动服务器和客户端进程，并重新运行查询。

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