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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What Is a Transaction?
A transaction is one or more SQL statements that must be completed as a whole or, in other words, as a single logical unit of work. Transactions provide a way of collecting and associating multiple actions into a single all-or-nothing multiple-operation action. All operations within the transaction must be fully completed or not performed at all.
Consider a bank transaction in which you move $1,000 from your checking account to your savings account. This transaction is, in fact, two operations: a decrement of your checking account and an increment of your savings account. Consider the impact on your finances if the bank’s server went down after it completed the first step and never got to the second! When the two operations ...
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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.
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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.