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“Prevent saving changes that require the table to be re-created” negative effects

...and re-create because it doesn't have to. The problem is that enumerating all of the cases and determining which side of the line they fall on will be quite tedious. This is why I like to use ALTER TABLE in a query window, instead of visual designers that hide what they're doing (and quite frankly...
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Generate random numbers with a given (numerical) distribution

...> choices(population, weights) 4 The optional keyword-only argument k allows one to request more than one sample at once. This is valuable because there's some preparatory work that random.choices has to do every time it's called, prior to generating any samples; by generating many samples at o...
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Where can I learn jQuery? Is it worth it?

...hools.com . It's hit or miss, I know, but the PHP and CSS sections specifically have proven very useful for reference. 14 A...
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Get local IP address in node.js

... @CarterCole you need an extra call to .values() before flatten. – Guido Mar 4 '15 at 9:41 3 ...
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How to check for DLL dependency?

...metimes when I'm doing a little project I'm not careful enough and accidentally add a dependency for a DLL that I am not aware of. When I ship this program to a friend or other people, "it doesn't work" because "some DLL" is missing. This is of course because the program can find the DLL on my syst...
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Mark parameters as NOT nullable in C#/.NET?

... function parameter that prevents null from being passed in C#/.NET? Ideally this would also check at compile time to make sure the literal null isn't being used anywhere for it and at run-time throw ArgumentNullException . ...
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Site stopped working in asp.net System.Web.WebPages.Razor.Configuration.HostSection cannot be cast t

...), updated the web.config file accordingly and it still didn't work. It finally worked when i changed my web.config file (INSIDE THE VIEWS directory) from: <sectionGroup name="system.web.webPages.razor" type="System.Web.WebPages.Razor.Configuration.RazorWebSectionGroup, System.Web.WebPages.Razor...
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Can I set an opacity only to the background image of a div?

...n IE from version 8, while the ::before pseudo-element is not supported at all. This will hopefully be rectified in version 10. HTML <div class="myDiv"> Hi there </div> CSS .myDiv { position: relative; z-index: 1; } .myDiv:before { content: ""; position: absolut...
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How to change the button text of ?

...file fields of forms. It is a plugin for a jQuery-based component library called Twitter Bootstrap Sample usage: Include: <script type="text/javascript" src="js/bootstrap-filestyle.min.js"> </script> Via JavaScript: $(":file").filestyle(); Via data attributes: <input type="fi...
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How to change the font size on a matplotlib plot

How does one change the font size for all elements (ticks, labels, title) on a matplotlib plot? 12 Answers ...