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Ordering by specific field value first

... There's also the MySQL FIELD function. If you want complete sorting for all possible values: SELECT id, name, priority FROM mytable ORDER BY FIELD(name, "core", "board", "other") If you only care that "core" is first and the other values don't matter: SELECT id, name, priority FROM mytable OR...
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C++11 std::threads vs posix threads

...gcc std::thread is perfectly fine - it has a higher abstraction level, a really good interface and plays nicely with other C++11 classes. The C++11 std::thread class unfortunately doesn't work reliably (yet) on every platform, even if C++11 seems available. For instance in native Android std::threa...
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ld cannot find an existing library

..., used by the dynamic linker; libmagic.so is used by the linker, and is usually together with the headers in the -dev package. The symlink might be missing because the -dev package was not installed. – CesarB Dec 3 '08 at 10:49 ...
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set DateTime to start of month

...le and use that if you are going to use the value repeatedly. There is a small chance of an error in case this code is executed exactly around midnight; the two calls to DateTime.Now may happen on each side of midnight causing possibly odd effects. – Fredrik Mörk ...
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Convert int to string?

...compile time, but it wouldn't even raise a runtime exception it would just allow bad data. – Timothy Gonzalez Dec 15 '16 at 16:29 3 ...
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How to convert date to timestamp?

...(YYYY-MM-DD), which is guaranteed to be understood by Date(), and is, generally speaking, the most interoperable format for date strings. – Walter Tross Dec 4 '14 at 13:54 ...
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Differences between action and actionListener

...just specify exactly that string in the action attribute. Thus, this is totally clumsy: <h:commandLink value="Go to next page" action="#{bean.goToNextpage}" /> With this senseless method returning a hardcoded string: public String goToNextpage() { return "nextpage"; } Instead, just put t...
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How do I step out of a loop with Ruby Pry?

... To exit Pry unconditionally, type exit-program Edit from @Nick's comment: Also works: !!! share | improve this answer | ...
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CSS endless rotation animation

... Am I correct in understanding this is not theoretically perfect since the non-vendor-prefixed properties should always be last so as not to override standards-compliant behavior? See: css-tricks.com/ordering-css3-properties – user657199 ...
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Can I force pip to reinstall the current version?

... a current version of a package seems not to be working and requires reinstallation. But pip install -U won't touch a package that is already up-to-date. I see how to force a reinstallation by first uninstalling (with pip uninstall ) and then installing, but is there a way to simply force an "upd...