May 2001
Intermediate to advanced
1088 pages
30h 13m
English
Content preview from Special Edition Using Java™ 2 Enterprise EditionBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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Why Transactions Are Important
When you write a database application, you often take transactions for granted. Transactions are an integral part of database applications, although in simple applications you might not notice transactions taking place because your database connection can be automatically committing the transactions without your knowledge.
A transaction lets you group a set of operations into an all-or-nothing operation. In other words, either the operations all succeed or they all fail. Going back to the example in Chapter 5, "Overview of Enterprise JavaBeans," imagine that you're using an automatic teller machine. The dispensing of the cash and the debiting of your account should be accomplished as a single transaction. You don't ...
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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.
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.