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The SQL OVER() clause - when and why is it useful?
I read about that clause and I don't understand why I need it.
What does the function Over do? What does Partitioning By do?
Why can't I make a query with writing Group By SalesOrderID ?
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Check if an apt-get package is installed and then install it if it's not on Linux
I'm working on a Ubuntu system and currently this is what I'm doing:
22 Answers
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How can I change property names when serializing with Json.net?
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[JsonProperty(PropertyName = "FooBar")]
public string Foo { get; set; }
Documentation: Serialization Attributes
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Java: random long number in 0
Random class has a method to generate random int in a given range. For example:
16 Answers
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How to read a file line-by-line into a list?
How do I read every line of a file in Python and store each line as an element in a list?
28 Answers
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Fully backup a git repo?
...branch -a. Maybe its more obvious this way: After cloning a repository you dont fetch every branch, you fetch every commit. Branches only reference to an existing commit.
– KingCrunch
Apr 7 '11 at 12:14
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Convert Iterator to ArrayList
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I don't get it. In what way is the ArrayList returned by, say, Guava any better than a normal ArrayList? Do they do it in a more efficient way? Even if it is more efficient is it really worth adding an extra dependency (and mor...
how does multiplication differ for NumPy Matrix vs Array classes?
The numpy docs recommend using array instead of matrix for working with matrices. However, unlike octave (which I was using till recently), * doesn't perform matrix multiplication, you need to use the function matrixmultipy(). I feel this makes the code very unreadable.
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How to override to_json in Rails?
...The moral of the story is: Avoid calling to_json directly, allow render to do that for you. If you need to tweak the JSON output, call as_json.
format.json { render :json =>
@user.as_json(:only => [:username], :methods => [:avatar]) }
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Is there a way to force ASP.NET Web API to return plain text?
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Hmmm... I don't think you need to create a custom formatter to make this work. Instead return the content like this:
[HttpGet]
public HttpResponseMessage HelloWorld()
{
string result = "Hello world! Time is: " + Da...