A recovery utility apparatus for expediting recovery time during failure of one or more database data sets is provided. A backup copy restore utility is configured to read and restore a backup copy of the database data set. A change accumulation manager is configured to read detail records in an incomplete...http://www.google.com.hk/patents/US6594676?utm_source=gb-gplus-share專利 US6594676 - System and method for recovery of multiple shared database data sets using multiple change accumulation data sets as inputs