Oracle Error ORA-38476: abstract type used for an Attribute set may not be modified.

Oracle Error Message

ORA-38476: abstract type used for an Attribute set may not be modified.

Reason for the Error

An attempt was made to alter a type (ADT) that is used to maintain an attribute set of an Expression set.

Solution

Do not modify the ADT directly. Use DBMS_EXPFIL APIs instead.