Merge Replication
With snapshot and transactional replication, a single source of data exists from which all the replication targets are replenished. In some situations, it might be necessary or desirable to allow the replication targets to accept changes to the replicated tables and merge these changes together at some later date.
Merge replication allows data to be modified by the subscribers and synchronized at a later time. This synchronization could be as soon as a few seconds, or it could be a day later.
Merge replication would be helpful for a sales database that is replicated from a central SQL Server database out to several dozen sales laptops. As the sales personnel make sales calls, they can add new data to the customer database or ...
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