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What are the main performance differences between varchar and nvarchar SQL Server data types?

I'm working on a database for a small web app at my school using SQL Server 2005 . I see a couple of schools of thought on the issue of varchar vs nvarchar : ...
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How to fix: android.app.RemoteServiceException: Bad notification posted from package *: Couldn't cre

...nteger reference and the pending intent going off, the app was updated and all of the drawable references changed. The integer that used to reference the correct drawable now referenced either the incorrect drawable or none at all (none at all - causing this crash) ...
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Rails 4 multiple image or file upload using carrierwave

...tiple_image_upload_carrierwave In gem file gem 'carrierwave' bundle install rails generate uploader Avatar Create post scaffold rails generate scaffold post title:string Create post_attachment scaffold rails generate scaffold post_attachment post_id:integer avatar:string rake db:migrate ...
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Increasing client_max_body_size in Nginx conf on AWS Elastic Beanstalk

...ke Java SE, Go, Node.js, and maybe Ruby (it's not documented for Ruby, but all the other Nginx platforms seem to support this), Elasticbeanstalk has a built-in understanding of how to configure Nginx. To extend Elastic Beanstalk's default nginx configuration, add .conf configuration files to a f...
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How to change the background color of the options menu?

... After spending a considerable amount of time trying all the options, the only way I was able to get an app using AppCompat v7 to change the overflow menu background was using the itemBackground attribute: <style name="AppTheme" parent="Theme.AppCompat.Light.DarkActionBar"&...
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How can I get the client's IP address in ASP.NET MVC?

I'm totally new to the ASP.NET MVC stack, and I was wondering what happened to the simple Page object and the Request ServerVariables object? ...
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How can I get the Typescript compiler to output the compiled js to a different directory?

... Though these answers are correct you should consider whether you actually just want to hide your .js files from your IDE. In Visual Studio Code, go to File > Preferences > Settings or your .vscode\settings.json file and enter: "files.exclude": { "**/.git": true, "**/.DS_Store"...
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What APIs are used to draw over other apps (like Facebook's Chat Heads)?

...t Heads on Android? What is the API to create the floating views on top of all other views? 3 Answers ...
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Can't use Swift classes inside Objective-C

... -Swift.h file, only the bridging headers. So I created it, but it's actually empty. I can use all my ObjC classes in Swift, but I can't do it vice versa. I marked my swift class with @objc but it didn't help. What can I do now? ...
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ASP.NET MS11-100: how can I change the limit on the maximum number of posted form values?

...d it didn't have the ThrowIfMaxHttpCollectionKeysExceeded method: I installed KB2656351 (update for .NET 4.0), reloaded the assemblies in Reflector and the method appeared: So that method is definitely new. I used the Disassemble option in Reflector, and from what I can tell from the code it c...