How to fix the Oracle error PRCD-01057: Instance name {0} is not valid?

In this post, you’ll learn more about the Oracle ErrorPRCD-01057: Instance name {0} is not valid with the details on why you receive this error and the possible solution to fix it.

Oracle Error Description

PRCD-01057: Instance name {0} is not valid

Reason for the Error PRCD-01057: Instance name {0} is not valid

Cause: The supplied instance name is not of the correct format.

How to fix the Error PRCD-01057: Instance name {0} is not valid ?

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

Action: Supplied a valid instance name. The valid character set for instance name is [a-zA-Z0-9_-].