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What does character set and collation mean exactly?
...ead of one.
Choosing the right collation can help performance if your database uses the collation to create an index, and later uses that index to provide sorted results. However, since collation rules are often locale-specific, that index will be worthless if you need to sort results according to ...
How do I parse a string to a float or int?
...e string isn't a valid integer: ValueError: invalid literal for int() with base 10: '545.222', but converting from a float to an int is a supported conversion.
– David Parks
May 7 '18 at 17:46
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Intel HAXM installation error - This computer does not support Intel Virtualization Technology (VT-x
...fter.
AVAST and some others also has some options that uses virtualization based isolation. Either disable them or temporally uninstall your AV.
Disable Core Isolation
Clean installs of Windows 10 1803 enables Core Isolation by default, which runs secure processes inside a virtualized container f...
Multiple inputs with same name through POST in php
... for help, clarification, or responding to other answers.Making statements based on opinion; back them up with references or personal experience.To learn more, see our tips on writing great answers.
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Meaning of $? (dollar question mark) in shell scripts
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The comparison is to be done on equals to 0 or not equals 0.
** Update Based on the comment: Ideally, you should not use the above code block for comparison, refer to @tripleee comments and explanation.
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Suppress warning “Category is implementing a method which will also be implemented by its primary cl
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A category allows you to add new methods to an existing class. If you want to reimplement a met...
Is it possible to install another version of Python to Virtualenv?
....org/packages/source/v/virtualenv/virtualenv-1.5.2.tar.gz#md5=fbcefbd8520bb64bc24a560c6019a73c
tar -zxvf virtualenv-1.5.2.tar.gz
cd virtualenv-1.5.2/
~/.localpython/bin/python setup.py install
3) Create a virtualenv using your local python
virtualenv docs
mkdir /home/${USER}/virtualenvs
cd /home/...
How do I get a UTC Timestamp in JavaScript?
... I use this, along with ".split('T')[0]" for easy YYYY-MM-DD date-based comparisons.
– Sean O
Sep 4 '19 at 20:59
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dplyr: “Error in n(): function should not be called directly”
... for help, clarification, or responding to other answers.Making statements based on opinion; back them up with references or personal experience.To learn more, see our tips on writing great answers.
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How to return an array from JNI to Java?
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Based on the asked question, this is already explained in the first answer that how can we pass int[] via jobjectArray. But Here is an example how we can return a jobjectArray which contains lists of data. This can be helpful...