May 2004
Beginner to intermediate
1032 pages
23h 48m
English
book
Sams Teach Yourself J2EE™ in 21 Days, Second Edition
by Martin Bond, Dan Haywood, Debbie Law, Andy Longshaw, Peter Roxburgh
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Overview of Transactions
If you've used a relational database before, completed a Computer Studies course, or read any other J2EE book, you've probably read a section like this one already. But read on anyway, if only to be acquainted with some of the J2EE terminology that is used in this arena.
A transaction is an atomic unit of work, where:
Atomic unit means indivisible—either every step within the transaction completes or none of them do.
Work here usually means some modification to data within a persistent data store. In database terms, this means one or more INSERT, UPDATE, or DELETE operations. However, strictly speaking, it also applies to reading of data through SELECT statements.
For a persistent data store to support transactions, it ...
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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.