Oracle Error Message
ORA-12090: cannot online redefine table “string”.”string”
Reason for the Error
An attempt was made to online redefine a table that is either a temporary table, an IOT overflow table, a table with fine-grained access control or row-level security enabled, a CDC change table, or a table with a CDC change table defined on it.
Solution
Do not attempt to online redefine a table that is not supported by online redefinition.