How to fix the Oracle error INS-35074: The specified SID is already in use.?

In this post, you’ll learn more about the Oracle ErrorINS-35074: The specified SID is already in use. with the details on why you receive this error and the possible solution to fix it.

Oracle Error Description

INS-35074: The specified SID is already in use.

Reason for the Error INS-35074: The specified SID is already in use.

Cause: The specified SID was already registered in the oratab file (string) on the server. The oratab file is used by Oracle products to detect existing database instances.

How to fix the Error INS-35074: The specified SID is already in use. ?

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

Action: Specify a unique Oracle system identifier (SID).