How to fix the Oracle error ORA-19561: string requires a DISK channel?

In this post, you’ll learn more about the Oracle ErrorORA-19561: string requires a DISK channel with the details on why you receive this error and the possible solution to fix it.

Oracle Error Description

ORA-19561: string requires a DISK channel

Reason for the Error ORA-19561: string requires a DISK channel

The attempted command requires that a DISK device channel be allocated to the session, but a non-DISK device was found.

How to fix the Error ORA-19561: string requires a DISK channel ?

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

Deallocate the current device and allocate a DISK channel, then then retry the command.