December 2013
Intermediate to advanced
1872 pages
153h 31m
English
book
Microsoft® SQL Server 2012 Unleashed
by Ray Rankins, Paul T. Bertucci, Chris Gallelli, Alex T. Silverstein
Content preview from Microsoft® SQL Server 2012 Unleashed
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Summary
Database snapshots can be thought of as an enabling capability with many purposes. They are great for fulfilling point-in-time reporting requirements easily, reverting a database to a point in time (recoverability and availability), insulating a database from issues that may arise during mass updates, and potentially reducing the processing impact of querying against the primary transactional databases (via database mirroring and database snapshots). You must remember that database snapshots are point-in-time and read-only. The only way to update a snapshot is to drop it and re-create it. Data latency of this point-in-time snapshot capability must always be made very clear to any of its users.
Database snapshots are snapshots of the ...
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