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Best way to work with transactions in MS SQL Server Management Studio
...OUNT > 0 COMMIT TRANSACTION " after ROLLBACK processing? and what value does @@TRANCOUNT have? Thanks again.
– QMaster
Jun 20 '15 at 21:25
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Java: Calling a super method which calls an overridden method
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The keyword super doesn't "stick". Every method call is handled individually, so even if you got to SuperClass.method1() by calling super, that doesn't influence any other method call that you might make in the future.
That means there is no ...
What is the difference between `after_create` and `after_save` and when to use which?
...readers should note that, according to the docs, ActiveRecord's update_all does not invoke any callbacks, including after_*
– user2426679
Jan 10 at 19:34
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Reshaping data.frame from wide to long format
...o share another alternative from base R: stack.
Note, however, that stack does not work with factors--it only works if is.vector is TRUE, and from the documentation for is.vector, we find that:
is.vector returns TRUE if x is a vector of the specified mode having no attributes other than names. ...
How to install JSTL? The absolute uri: http://java.sun.com/jstl/core cannot be resolved
...etty common mistake among Tomcat users. The problem with Tomcat is that it does not offer JSTL out the box and thus you have to manually install it. This is not necessary in normal Java EE servers. See also What exactly is Java EE?
In your specific case, your pom.xml basically tells you that you ha...
Is there a download function in jsFiddle?
...js"><span class="icon-pencil"></span>Show JS</a> . It doesn't do anything, but maybe is coming soon
– corbacho
Feb 13 '13 at 20:30
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Start ssh-agent on login
...H_ENV}" ]; then
. "${SSH_ENV}" > /dev/null
#ps ${SSH_AGENT_PID} doesn't work under cywgin
ps -ef | grep ${SSH_AGENT_PID} | grep ssh-agent$ > /dev/null || {
start_agent;
}
else
start_agent;
fi
This version is especially nice since it will see if you've already ...
Regex Email validation
...I agree that your examples probably won't work in the real world, but that doesn't make them invalid.
– Dan Pichelman
Aug 27 '12 at 18:53
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android fragment- How to save states of views in a fragment when another fragment is pushed on top o
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it doesn't call onSaveInstanceState - why would it ? So, this approach doesn't work.
– midnight
Dec 29 '12 at 9:34
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Zero-pad digits in string
...want to pad your digits with leading zeros in a string. The following code does that:
$s = sprintf('%02d', $digit);
For more information, refer to the documentation of sprintf.
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