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
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Playing Roles and Switching Roles
A role corresponds to what a server is doing at a particular point in time. There are three possible roles:
Witness role—If a server is playing a witness role, it is essentially standing alongside both partners of a database mirror configuration and is used to settle all arguments. It is getting together with any one of the other servers and forming a quorum to come up with decisions. The decision that it will participate in is whether to fail over. That is it. As mentioned before, the witness server can be any edition of a SQL Server (even SQL Server Express, the free version).
Principal role—If a server is ...
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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.