Operation supported for read-write databases only

  Explanation:  You attempted to perform data definition or
  updates on an Rdb Transparent Gateway to DB2 or Rdb Transparent
  Gateway to Oracle database.  Rdb Transparent Gateway to DB2 or
  Rdb Transparent Gateway to Oracle databases are read-only.

  User Action:  Do not issue any CREATE, INSERT, UPDATE, or DELETE
  statements with an Rdb Transparent Gateway to DB2 or Rdb
  Transparent Gateway to Oracle database.