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7,177,866 - Asynchronous coordinated commit replication and dual write with replication transmission and locking of target database on updates only

Abstract:

Tokens are used to prepare a target database for replication from a source database and to confirm the preparation in an asynchronous coordinated commit replication process. During a dual write replication process, transmission of the replicated data and locking of data records in the target database occurs only on updates.