May 2001
Intermediate to advanced
1088 pages
30h 13m
English
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The ACID Test
Transactional operations are usually judged by whether they meet the ACID test, which is a simple set of four criteria that describes the desired properties of a transaction. These properties are atomicity, consistency, isolation, and durability.
Atomicity
Atomicity means that all operations in the transaction succeed or they all fail. As you have already seen, if only part of a transaction can succeed, it becomes extremely difficult to maintain data integrity.
Consistency
No matter what happens, during the transaction, the data is still in a consistent state. Some aspects of consistency are dependent on the program itself and not specifically the transac tion coordinator or the database. For example, if a transaction could allow ...
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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.