How to fix the Oracle error TNS-12510: TNS:database temporarily lacks resources to handle the request?

In this post, you’ll learn more about the Oracle ErrorTNS-12510: TNS:database temporarily lacks resources to handle the request with the details on why you receive this error and the possible solution to fix it.

Oracle Error Description

TNS-12510: TNS:database temporarily lacks resources to handle the request

Reason for the Error TNS-12510: TNS:database temporarily lacks resources to handle the request

Cause: The dispatchers appear to be busy handling other requests.

How to fix the Error TNS-12510: TNS:database temporarily lacks resources to handle the request ?

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

Action: Attempt the connection again. If error persists, ask the DBA to increase the number of dispatchers and/or dispatchers’ limit on number of connections/sessions that they can accept.