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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Distributed Transactions
Typically, transaction management controls only the data modifications made within a single SQL Server instance. However, the increasing interest and implementation of distributed systems brings up the need to access and modify data distributed across multiple SQL Server instances within a single unit of work.
What if in the banking example, the checking accounts reside on one SQL Server instance and the savings accounts on another? Moving money from one account to another would require updates to two separate SQL Server instances. How do you modify data on two different instances and still treat it as a single unit of work? You need some way to ensure that the distributed transaction retains the same ACID properties ...
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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.