Enterprise Replication provides an initial synchronization feature that allows you to easily bring a new table up-to-date with replication when you start a new replicate, or when you add a new participant to an existing replicate. Initial synchronization can be run online while replication is active. For more information about initial synchronization, see Initially Synchronizing Data Among Database Servers.
If replication has failed for some reason, Enterprise Replication allows you to run a repair job to resynchronize data and correct data mismatches between replicated tables. Repair jobs can be run online while replication is active. For more information, see Resynchronizing Data Among Replication Servers.
You can also repair data after replication has failed by using ATS and RIS files. Enterprise Replication examines the specified ATS or RIS file and attempts to reconcile the rows that failed to be applied. This method is fast, but does not allow as much flexibility as a repair job allows in defining how the repair should be done. See Repairing Failed Transactions with ATS and RIS Files for more information.
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