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What are the use cases for selecting CHAR over VARCHAR in SQL?

...realize that CHAR is recommended if all my values are fixed-width. But, so what? Why not just pick VARCHAR for all text fields just to be safe. ...
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Uniq by object attribute in Ruby

What's the most elegant way to select out objects in an array that are unique with respect to one or more attributes? 14 An...
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Convert string[] to int[] in one line of code using LINQ

....ToArray(); just returns the indeces 0,1,2,... instead of the real values. What's the right solution here? – Beetee Jul 10 '17 at 11:20 ...
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What is the Haskell response to Node.js?

... cooperative multitasking, as opposed to preemptive multitasking, which is what you get with threads. The main disadvantage with cooperative multitasking is that the programmer is responsible for making sure that there's no starvation. It loses modularity: make a mistake in one place, and it can s...
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Why am I seeing “TypeError: string indices must be integers”?

... brackets, e.g., gravatar_id. So I'd first check your data variable to see what you received there; I guess that data is a list of strings (or at least a list containing at least one string) while it should be a list of dictionaries. ...
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Phonegap Cordova installation Windows

... After hours of frustration... here's what i discovered. Ignore the installation documentation and all the command line, node.js stuff (seriously you will waste hours on this. Go to github and simply download the PhoneGap master .zip In that zip are project fil...
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Which version of C# am I using

...ng).Assembly.ImageRuntimeVersion); Getting version of C# compiler is somewhat harder, but you should be able to guess version by checking what framework version is used. If you are using command line compiler (csc.exe) you can check help to see version (also you'd need to know Framework version ...
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Command line progress bar in Java

...ve implemented this sort of thing before. Its not so much about java, but what characters to send to the console. The key is the difference between \n and \r. \n goes to the start of a new line. But \r is just carriage return - it goes back to the start of the same line. So the thing to do is to...
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What does the ??!??! operator do in C?

I saw a line of C that looked like this: 4 Answers 4 ...
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Call a REST API in PHP

... Note, the curl_close function is not called, what could cause extra memory consumption if the CallAPI function is called repeatedly. – Bart Verkoeijen Jul 22 '14 at 8:19 ...