How to fix the Oracle error PCB-00638: This attribute is only valid for internal or external LOB types?

In this post, you’ll learn more about the Oracle ErrorPCB-00638: This attribute is only valid for internal or external LOB types with the details on why you receive this error and the possible solution to fix it.

Oracle Error Description

PCB-00638: This attribute is only valid for internal or external LOB types

Reason for the Error PCB-00638: This attribute is only valid for internal or external LOB types

Cause: A request for a LOB attribute was made in a LOB DESCRIBE statement in which the given source was not an internal or external LOB type.

How to fix the Error PCB-00638: This attribute is only valid for internal or external LOB types ?

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

Action: Use a LOB host variable in the LOB DESCRIBE statement.