Satellite 5.7 throws an ISE when trying to add a Red Hat Errata to a custom channel using when connected to an external Oracle database

Issue

• Satellite 5.7 throws an Internal Server Error when trying to add a Red Hat Errata to a custom channel using when connected to an external Oracle database.

2015-05-13 09:58:28,742 [TP-Processor7] ERROR com.redhat.rhn.common.db.datasource.CachedStatement - Error while processing cached statement sql: SELECT DISTINCT E.id , E.advis
ory_name AS advisory,
                E.update_date AS UPDATE_DATE,
                E.synopsis as ADVISORY_SYNOPSIS,
                E.advisory_type as ADVISORY_TYPE,
                                E.advisory_name AS advisory
  FROM rhnErrata E inner join
       rhnChannelErrata CE on E.id = CE.errata_id left join
    ( select Cloned.original_id as clonedId from rhnChannelErrata CE2 inner join
            rhnErrataCloned Cloned on CE2.errata_id = cloned.id
        where CE2.channel_id = ?
    )  temp on E.id  = temp.clonedId left join
        (SELECT errata_id from rhnChannelErrata where channel_id = ?) exists on exists.errata_id = E.id,
       rhnSet S
 WHERE CE.channel_id  = S.element
 AND S.label =  'channels_for_errata'
         and temp.clonedId is null
         and exists.errata_id is null
         and S.user_id = ?
Caused by: 
com.redhat.rhn.common.db.WrappedSQLException: ORA-00905: missing keyword