September 2010
Intermediate to advanced
1704 pages
111h 8m
English
book
Microsoft® SQL Server 2008 R2 Unleashed
by Ray Rankins, Paul Bertucci, Chris Gallelli, Alex T. Silverstein
Content preview from Microsoft® SQL Server 2008 R2 Unleashed
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What Is Database Mirroring?
When you mirror a database, you are essentially asking for a complete copy of a database to be created and maintained, with as much up-to-the-second completeness as possible; you are asking for a mirror image. Database mirroring is a database-level feature. This means that there is no support for filtering, subsetting, or any form of partitioning. You mirror a complete database or nothing at all. This limitation actually keeps database mirroring simple and clean to implement. It also certainly provides some drawbacks, such as burning up twice the amount of disk storage, but what you get in return is well worth the cost in storage.
Database mirroring works through the transaction log of the principal database (of ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.