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SQL SELECT speed int vs varchar
...s.
This holds true both for unindexed and indexed access. The fastest way to go is an indexed int column.
As I see you've tagged the question postgreql, you might be interested in the space usage of different date types:
int fields occupy between 2 and 8 bytes, with 4 being usually more than e...
Seeding the random number generator in Javascript
Is it possible to seed the random number generator (Math.random) in Javascript?
13 Answers
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Error to install Nokogiri on OSX 10.9 Maverick?
I upgraded my OSX (Lion) to Mavericks and I can't install Nokogiri for my projects.
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Signtool error: No certificates were found that met all given criteria with a Windows Store App?
I'm trying to sign a Windows 8 appx package with a pfx file I have. I'm using a command like so:
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Parse JSON in JavaScript? [duplicate]
I want to parse a JSON string in JavaScript. The response is something like
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Determining Referer in PHP
What is the most reliable and secure way to determine what page either sent, or called (via AJAX), the current page. I don't want to use the $_SERVER['HTTP_REFERER'] , because of the (lack of) reliability, and I need the page being called to only come from requests originating on my site.
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Adding Only Untracked Files
One of the commands I find incredibly useful in Git is git add -u to throw everything but untracked files into the index. Is there an inverse of that? In the last few months, I've often found myself in a position where I've interactively added some updates to the index and I want to add all of the...
String.Empty versus “” [duplicate]
..., "".
In application code, this field is most commonly used in assignments to initialize a string variable to an empty string. To test whether the value of a string is String.Empty, use the IsNullOrEmpty method.
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How to return a file using Web API?
I am using ASP.NET Web API . I want to download a PDF with C# from the API (that the API generates).
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How to sort an IEnumerable
... retrieve the elements from it, but cannot modify it directly. If you want to sort a collection of strings in-place, you need to sort the original collection which implements IEnumerable<string>, or turn an IEnumerable<string> into a sortable collection first:
List<string> myList ...