What is the meaning of a transaction?

Question

I read about Java Transaction , and I was confused about what it is? and what is useful in?

Answer 1

You can search Google and find the following pages: http://www.java-tips.org/java-ee-tips/enterprise-java-beans/introduction-to-the-java-transactio.html

but bottom line: a transaction is a set of operations that must be successful or all fail and be canceled (rollback).

An obvious example is banking: if you transfer money from savings to verification, then both updates are better or not, otherwise there will be an error.

Answer 2

I would say that it is best to start:

http://en.wikipedia.org/wiki/Transaction_processing

http://en.wikipedia.org/wiki/ACID

Thanks Nitin