How to fix the Oracle error ORA-15252: user name ‘string’ does not exist in OS user dictionary?

In this post, you’ll learn more about the Oracle ErrorORA-15252: user name ‘string’ does not exist in OS user dictionary with the details on why you receive this error and the possible solution to fix it.

Oracle Error Description

ORA-15252: user name ‘string’ does not exist in OS user dictionary

Reason for the Error ORA-15252: user name ‘string’ does not exist in OS user dictionary

The specified user name was not a valid operating system user.

How to fix the Error ORA-15252: user name ‘string’ does not exist in OS user dictionary ?

You can fix this error in Oracle by following the below steps

Specify a valid operating system user.