ORA-21520: database server driver not installed

文档解释

ORA-21520: database server driver not installed

Cause: User attempted to access a database server through an object-mode OCI environment but the necessary driver for supporting such access to the database server is not installed or linked in.

Action: Check if the driver corresponding to the database server has been installed/linked in and entered in the server driver table.

ORA-21520是Oracle数据库服务器中的一种错误，它表明数据库驱动程序没有被正确安装。

官方解释

ORA-21520: database server driver not installed

Cause: The database server failed to install the requested driver.

Action: Reinstall the driver or contact Oracle Support Services.

常见案例

该错误通常发生在安装新的Oracle数据库驱动程序时，但没有成功完成安装。

一般处理方法及步骤

1.重新下载Oracle驱动程序，确保是最新的可用版本。

2.按照Oracle数据库文档中指定的步骤仔细安装驱动程序。

3.确保安装步骤结束后，完成所有需向正确配置的步骤并重启服务器。