June 2015
Intermediate to advanced
1800 pages
70h 6m
English
book
Microsoft SQL Server 2014 Unleashed
by Ray Rankins, Paul Bertucci, Chris Gallelli, Alex T. Silverstein
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AutoCommit Transactions
AutoCommit is the default transaction mode for SQL Server. Each individual T-SQL command automatically commits or rolls back its work at the end of its execution. Each SQL statement is considered to be its own transaction, with begin and end control points implied. Following is an example:
[implied begin transaction]UPDATE account SET balance = balance + 1000 WHERE account_no = "123456789"[implied commit or rollback transaction]
If an error is present in the execution of the statement, the action is undone (that is, rolled back); if no errors occur, the action is completed, and the changes are saved.
Now let’s consider the banking transaction mentioned at the beginning of this chapter ...
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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.