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What's the best practice for primary keys in tables?

... 2005/2008 the natural (text) key can be faster than an int key. I have an app with a 7-8 character friendly code that we use as the primary key and that was faster (and often more convenient) than an int surrogate. We needed the code anyway so that we could have a human readable/memorable code that...
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Unicode, UTF, ASCII, ANSI format differences

...gate pairs. These used to be relatively rarely used, but now many consumer applications will need to be aware of non-BMP characters in order to support emojis. UTF-8: Variable length encoding, 1-4 bytes per code point. ASCII values are encoded as ASCII using 1 byte. UTF-7: Usually used for mail enco...
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Django Admin - Disable the 'Add' action for a specific model

....register(MyModel, MyModelAdmin) Add all into the admin.py of the models`s app folder. – djangonaut Apr 23 '18 at 9:16 ...
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What is the difference between synchronous and asynchronous programming (in node.js)

... The difference between these two approaches is as follows: Synchronous way: It waits for each operation to complete, after that only it executes the next operation. For your query: The console.log() command will not be executed until & unless the query ...
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How to send password securely over HTTP?

.... not at all. Screenshot you are seeing is modified to illustrate what is happening in a browser. The moment you hit enter browser will convert your url creating a Authorization header. Just give it a go. Logs will remind clean. And of course if you making a call from the server (if that is the sce...
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Show AlertDialog in any position of the screen

...windowBackground to null, like so: <resources> <!-- Example app theme - mine uses the below --> <style name="AppTheme" parent="Theme.AppCompat.Light.NoActionBar"> <item name="android:alertDialogTheme">@style/MyDialogTheme</item> </style> ...
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Is modern C++ becoming more prevalent? [closed]

...windows client to do CRUD on my db. Use C#/.NET or C++/MFC? I want a web app... Use C#/ASP.NET or C++/ISAPI? I want a simple "Nybbles" clone using DirectX C#/.NET or C++/MFC/WTL? I want a winning demo at Assembly09... definitely C++ (vs. C#). – spoulson Fe...
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What is the advantage of using async with MVC5?

...NET requests to a CDN. A simple CDN is merely using subdomain and separate app pool for physical files like your javascript and images. Alternatively you could use NgineX / Lighttpd / Apache for files, or you could use a third party service such as Akamai (king for CDN but most expensive) ...
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HTTP vs HTTPS performance

...ient side key (which could be implemented in the case of a webkit/titanium app), the goal is simply to maximize this component of the speed equation along with the others you mentioned. – Matt Gardner Nov 5 '09 at 16:17 ...
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How do I sort an observable collection?

...istBox though, then frameworks such as WPF or Silverlight or Windows Store Apps will provide useful visual feedback as objects in the collection are re-indexed. – Carlos P Oct 13 '12 at 11:09 ...