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What is the difference between varchar and nvarchar?

... and Unicode is the cure for codepage problems. With cheap disk and memory nowadays, there is really no reason to waste time mucking around with code pages anymore. All modern operating systems and development platforms use Unicode internally. By using nvarchar rather than varchar, you can avoid do...
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New lines inside paragraph in README.md

... Thank you so much. My documents will be much better now! – Guilherme Ferreira Aug 29 '16 at 16:20 2 ...
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Error handling in Bash

... set -e -o pipefail -u # and know what you are doing – Sam Watkins Jul 3 '14 at 8:32 ...
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Static member initialization in a class template

... @Johannes: Dammit, I'm here for a year and I didn't know that! What else am I missing? (I still remember the shame when I discovered that the two numbers that appear when I click on the number of votes aren't a bug, but a feature.) <goes_playing> Wow, when I hover over yo...
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PHP array_filter with arguments

...ThanFilter(12), 'isLower')); print_r($matches); As a sidenote, you can now replace LowerThanFilter with a more generic NumericComparisonFilter with methods like isLower, isGreater, isEqual etc. Just a thought — and a demo... ...
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Why should eval be avoided in Bash, and what should I use instead?

...g.' # Result in the same output (as long as $IFS has not been modified). Now say we want to add an option to redirect output as an argument to println. We could, of course, just redirect the output of println on each call, but for the sake of example, we're not going to do that. We'll need to us...
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Does Swift support reflection?

...intln("Type: \(type)") //Unfortunately this prints only "Type: Metatype" Now assuming TestObject extends NSObject var clazz: NSObject.Type = TestObject.self var instance : NSObject = clazz() if let testObject = instance as? TestObject { println("yes!") //prints "yes!" } Currently, there is...
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Nested attributes unpermitted parameters

... Seems there is a change in handling of attribute protection and now you must whitelist params in the controller (instead of attr_accessible in the model) because the former optional gem strong_parameters became part of the Rails Core. This should look something like this: class PeopleCo...
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What are the calling conventions for UNIX & Linux system calls (and user-space functions) on i386 an

... @JonathanLeffler the link seems to be not working right now. If you are also getting an issue visiting the link, can you please update it? – Ajay Brahmakshatriya Nov 25 '18 at 6:46 ...
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How can I change a secret Gist to public?

... I upload a Gist code and set it to be secret. Now I want to change the gist to public, but I can't find how to set it publi Since May, 9th 2014, it is possible: "Change the visibility of your Gists" You can change the visibility of your Gists whenever you want. When ed...