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ORA-29663: Unable to find a method that matches one or more of the functions ORACLE 报错 故障修复 远程处理

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ORA-29663: Unable to find a method that matches one or more of the functions ORACLE 报错 故障修复 远程处理

文档解释

ORA-29663: Unable to find a method that matches one or more of the functions

Cause: The EXTERNAL NAME option of one or more functions do not match any method in the defined class.

Action: Make sure the EXTERNAL NAME option of each function matches a method in the defined in the defined class.

ORA-29663: 表示操作系统无法找到匹配特定函数。这是一个系统安全及访问权限相关的问题,通常由于权限的不充分导致。官方解释是:“Oracle 数据库尝试访问某个文件系统,但由于操作系统拒绝了访问,因此抛出了 ORA-29663 错误。此外,它还可能是由于 OS 的环境变量设置不正确导致的。”

常见案例

1. 在 Windows 系统,需要执行某项操作时,操作系统拒绝 Oracle 无权访问需要的数据文件或其它文件,会抛出 ORA-29663 错误。

2. Linux 系统下,安装软件时,操作系统拒绝 Oracle 更改某些文件或目录,也会抛出 ORA-29663 错误。

一般处理方法及步骤

1. 检查 OS 的环境变量是否设置正确,如果不正确,可以手工设置,或者更改配置文件来更新环境变量。

2. 对于 Windows 系统,可以重新设置文件访问权限,以便 Oracle 有权访问指定的文件。

3. 对于 Linux 系统,可以使用 chattr 命令设置指定文件的属性,同时也可以使用 chmod 命令设置文件的访问权限。

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ORA-29663: Unable to find a method that matches one or more of the functions ORACLE 报错 故障修复 远程处理

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