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ALTER TABLE without locking the table?

...'ve been using MySQL for so long that I keep forgetting they have triggers now. I've used this technique and now I have a functional hot-alter script. With a progress bar. And it works with MyISAM. Life is good. – Daniel Jan 21 '09 at 12:10 ...
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Custom CSS Scrollbar for Firefox

... As of late 2018, there is now limited customization available in Firefox! See these answers: https://stackoverflow.com/a/54101063/405015 https://stackoverflow.com/a/53739309/405015 And this for background info: https://bugzilla.mozilla.org/show_bug....
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Why do people use Heroku when AWS is present? What distinguishes Heroku from AWS? [closed]

...to scale up. Great. You're using Puppet for your EC2 deployment, right? So now you configure your Capistrano files to spin up/down instances as needed; you re-jig your Puppet config so Varnish is aware of web-worker instances and will automatically pool between them. Or you heroku scale web:+5. Hop...
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Is there a destructor for Java?

...finalize only for sanity checking (i.e. if close has not been called do it now and log an error). There was a question that spawned in-depth discussion of finalize recently, so that should provide more depth if required... ...
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Design Patterns: Factory vs Factory method vs Abstract Factory

...ch concrete implementation it is getting. Factory Method: Client doesn't know what concrete classes it will be required to create at runtime, but just wants to get a class that will do the job. AbstactFactory: When your system has to create multiple families of products or you want to provide a l...
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Is it feasible to compile Python to machine code?

... shedskin has had no work done on it in about two years now. :( – Perkins Aug 27 '18 at 17:58 add a comment  |  ...
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How to train an artificial neural network to play Diablo 2 using visual input?

... UPDATE 2018-07-26: That's it! We are now approaching the point where this kind of game will be solvable! Using OpenAI and based on the game DotA 2, a team could make an AI that can beat semi-professional gamers in a 5v5 game. If you know DotA 2, you know this ga...
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How to convert DateTime to/from specific string format (both ways, e.g. given Format is “yyyyMMdd”)?

...pic, but for those searching, the link above, "culture-specific format" is now a dead link. Here is one that is current and informative Custom Date and Time Format Strings – user416527 Oct 11 '12 at 16:03 ...
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When should I use Inline vs. External Javascript?

I would like to know when I should include external scripts or write them inline with the html code, in terms of performance and ease of maintenance. ...
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Best place to insert the Google Analytics code [duplicate]

... now the current recommendation is: right after the opening <head> tag. The source is on the same page as someone else linked - support.google.com/analytics/answer/1008080?hl=en#GA – JackLeo ...