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Microsoft® SQL Server 2012 Unleashed by Alex T. Silverstein, Chris Gallelli, Paul T. Bertucci, Ray Rankins

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Transactional Replication

Transactional replication is the process of capturing transactions from the transaction log of the published database and applying them to the subscription databases. With SQL Server transactional replication, you can publish all or part of a table, views, or one or more stored procedures as an article. All data updates are then stored in the distribution database and sent and applied to any number of subscribing servers. Obtaining these updates from the publishing database’s transaction log is extremely efficient. No direct reading of tables is required except during initial snapshot, and only the minimal amount of traffic is generated over the network. This has made transactional replication the most often used method. ...

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