How to fix the Oracle error ORA-19568: a device is already allocated to this session?

In this post, you’ll learn more about the Oracle ErrorORA-19568: a device is already allocated to this session with the details on why you receive this error and the possible solution to fix it.

Oracle Error Description

ORA-19568: a device is already allocated to this session

Reason for the Error ORA-19568: a device is already allocated to this session

A device cannot be allocated to a session if another device is already allocated.

How to fix the Error ORA-19568: a device is already allocated to this session ?

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

Deallocate the current device