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

In this post, you’ll learn more about the Oracle ErrorORA-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

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

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

The dispatchers appear to be busy handling other requests.

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

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

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.