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SQL Server: Difference between PARTITION BY and GROUP BY
I've been using GROUP BY for all types of aggregate queries over the years. Recently, I've been reverse-engineering some code that uses PARTITION BY to perform aggregations. In reading through all the documentation I can find about PARTITION BY , it sounds a lot like GROUP BY , maybe with a ...
How to change a Git remote on Heroku
I do not want to upload my app to the wrong domain.
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Get the first key name of a javascript object [duplicate]
Let's assume we have the following javascript object:
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Where is body in a nodejs http.get response?
I'm reading the docs at http://nodejs.org/docs/v0.4.0/api/http.html#http.request , but for some reason, I can't seem to to actually find the body/data attribute on the returned, finished response object.
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How to check if a string contains an element from a list in Python
I have something like this:
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How does free know how much to free?
In C programming, you can pass any kind of pointer you like as an argument to free, how does it know the size of the allocated memory to free? Whenever I pass a pointer to some function, I have to also pass the size (ie an array of 10 elements needs to receive 10 as a parameter to know the size of t...
Detect Chrome extension first run / update
How can an extension find out that it is being run for the first time or has just been updated, so that the extension can perform some specific actions? (e.g. open a help page or update settings)
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What is Prefix.pch file in Xcode?
So many developers are adding various convenience macros to the Prefix.pch . But my question is what is that Prefix.pch file.
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Fastest way to check if a string is JSON in PHP?
I need a really, really fast method of checking if a string is JSON or not. I feel like this is not the best way:
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C# namespace alias - what's the point?
Where or when would one would use namespace aliasing like
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