Oracle Solution for Error ora-12088

Solution for Oracle Error ORA-12088

ORA-12088: cannot online redefine table "string"."string" with unsupported datatype

What triggered the Error:

An attempt was made to online redefine a table containing a LONG column, an ADT column, or a FILE column.

What should we do to fix it:

Do not attempt to online redefine a table containing a LONG column, an ADT column, or a FILE column.