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What is a database transaction?
... the system to make the change "stick")
See the Wikipedia ACID entry for more details.
Although this is typically applied to databases, it doesn't have to be. (In particular, see Software Transactional Memory.)
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How can I kill a process by name instead of PID?
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pkill firefox
More information: http://linux.about.com/library/cmd/blcmdl1_pkill.htm
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How do I create a new line in Javascript?
...the \n for a newline character.
document.write("\n");
You can also have more than one:
document.write("\n\n\n"); // 3 new lines! My oh my!
However, if this is rendering to HTML, you will want to use the HTML tag for a newline:
document.write("<br>");
The string Hello\n\nTest in your ...
How to check if a query string value is present via JavaScript?
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UIView with rounded corners and drop shadow?
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Redefine tab as 4 spaces
...ing of a line (i.e. the
only preceding characters are whitespace).
For more details on any of these see :help 'optionname' in vim (e.g. :help 'tabstop')
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Java - Method name collision in interface implementation
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What is the difference between localStorage, sessionStorage, session and cookies?
... a state server or database. This is also necessary when using a web-farm (more than one server for a given website).
As session data is completely controlled by your application (server side) it is the best place for anything sensitive or secure in nature.
The obvious disadvantage of server-side ...
Spring JPA selecting specific columns
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