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How to declare a variable in MySQL?

... refer to a variable that has not been initialized, it has a value of NULL and a type of string. SELECT @var_any_var_name You can initialize a variable using SET or SELECT statement: SET @start = 1, @finish = 10; or SELECT @start := 1, @finish := 10; SELECT * FROM places WHERE place BET...
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Short description of the scoping rules?

...e Local — Names assigned in any way within a function (def or lambda), and not declared global in that function Enclosing-function — Names assigned in the local scope of any and all statically enclosing functions (def or lambda), from inner to outer Global (module) — Names assigned at the to...
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What are the default access modifiers in C#?

...ult access modifier for classes, methods, members, constructors, delegates and interfaces? 9 Answers ...
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What is the advantage of using REST instead of non-REST HTTP?

...dy really agrees on what REST is. The wikipedia page is heavy on buzzwords and light on explanation. The discussion page is worth a skim just to see how much people disagree on this. As far as I can tell however, REST means this: Instead of having randomly named setter and getter URLs and using GET...
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When should I use GET or POST method? What's the difference between them?

...nfuses the concepts a bit. A POST request gets input from the query string and through the request body. A GET request just gets input from the query string. So a POST request is a superset of a GET request; you can use $_GET in a POST request, and it may even make sense to have parameters with the ...
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Regex for password must contain at least eight characters, at least one number and both lower and up

... Minimum eight characters, at least one letter and one number: "^(?=.*[A-Za-z])(?=.*\d)[A-Za-z\d]{8,}$" Minimum eight characters, at least one letter, one number and one special character: "^(?=.*[A-Za-z])(?=.*\d)(?=.*[@$!%*#?&])[A-Za-z\d@$!%*#?&]{8,}$" Mini...
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Using Java with Nvidia GPUs (CUDA)

I'm working on a business project that is done in Java, and it needs huge computation power to compute business markets. Simple math, but with huge amount of data. ...
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What happens to global and static variables in a shared library when it is dynamically linked?

I'm trying to understand what happens when modules with globals and static variables are dynamically linked to an application. By modules, I mean each project in a solution (I work a lot with visual studio!). These modules are either built into *.lib or *.dll or the *.exe itself. ...
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Are custom elements valid HTML5?

... The Custom Elements specification is available in Chrome and Opera, and becoming available in other browsers. It provides a means to register custom elements in a formal manner. Custom elements are new types of DOM elements that can be defined by authors. Unlike decorators, which ...
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AngularJS best practices for module declaration?

... 'Best' way to declare a module As angular is on the global scope itself and modules are saved to its variable you can access modules via angular.module('mymod'): // one file // NOTE: the immediately invoked function expression // is used to exemplify different files and is not required (functio...