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Snapshot replication refers to a replication method between databases. During this process, data is infrequently updated at specified times by copying data changes from the original database (publisher) to a receiving database (subscriber).
Snapshot replication is the ideal replication method under any of the following conditions:
Replication only copies data that has been changed since the data was previously replicated. In certain cases, snapshot replication is not the best option, e.g., a commercial bank database replication.
Snapshot replication also is a good way to perform the initial publisher and subscriber sync. While setting up the replication, snapshot scheduling, frequency and times should be applied for each database.
Other replication types include merge replication and transactional replication.