It is an object of the present invention to use the resources of various sites in an effective manner. The first site has a first DB access part in use. The second site has a second DB access part in use in addition to a first DB access part for standby corresponding to the first DB access part in use....http://www.google.de/patents/US7293194?utm_source=gb-gplus-sharePatent US7293194 - Method and device for switching database access part from for-standby to currently in use
