Patent ID: 7953707
Filing Date: 2011-05-31
Classification: G06F

Abstract:
1. A database management system that includes a replication system, a processor, and a memory, the database management system comprising: at least one database table that is subject to replication; a recovery log; a replication signal table; said replication system creates entries in the recovery log in response to changes to a state of any one or more of the at least one database table and the replication signal table, wherein said replication signal table is a specific table that is configured for all users of the database management system, and wherein the entries in the recovery log are ordered with log sequence numbers; said replication system inserting into the replication signal table a replication command to the replication system relating to the at least one database table and comprising a first log sequence number correlating to a current first recovery log entry; said replication system detecting a second recovery log entry in the recovery log for said replication command; said replication system processing recovery log entries that are positioned subsequent to the second recovery log entry according to the log sequence numbers of the recovery log and executing said replication command entered in the replication signal table only after processing all recovery log entries up to the first recovery log entry pointed to by the first log sequence number.