What is the difference between Replication and Mirroring in SQL server 2005?
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What is the difference between Replication and Mirroring in SQL server 2005?
In short, mirroring allows you to have a second server be a “hot” stand-by copy of the main server, ready to take over any moment the main server fails. So mirroring offers fail-over and reliability.
Replication, on the other hand, allows two or more servers to stay “in sync” – that means the secondary servers can answer queries and (depending on setup) actually change data (it will be merged in the sync). You can also use it for local caching, load balancing, etc.