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What are the use cases of Graph-based Databases (http://neo4j.org/)? [closed]

... I used a graph database in a previous job. We weren't using neo4j, it was an in-house thing built on top of Berkeley DB, but it was similar. It was used in production (it still is). The reason we used a graph database was that the data being stored by the system and the operations the syste...
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What is an efficient way to implement a singleton pattern in Java? [closed]

...ngleton public enum Elvis { INSTANCE; private final String[] favoriteSongs = { "Hound Dog", "Heartbreak Hotel" }; public void printFavorites() { System.out.println(Arrays.toString(favoriteSongs)); } } Edit: An online portion of "Effective Java" says: "This ap...
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Enterprise app deployment doesn't work on iOS 7.1

We distribute apps via an Enterprise account, using an itms-services:// URL. This has always worked fine, but after installing the iOS 7.1 beta on our iPad it refuses to install. Instead we just get the generic Cannot connect to example.com message that iOS unhelpfully displays when there is any...
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Difference between “read commited” and “repeatable read”

...nk the above isolation levels are so alike. Could someone please describe with some nice examples what the main difference is ? ...
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Fatal Error: Allowed Memory Size of 134217728 Bytes Exhausted (CodeIgniter + XML-RPC)

... Changing the memory_limit by ini_set('memory_limit', '-1'); is not a proper solution. Please don't do that. Your PHP code may have a memory leak somewhere and you are telling the server to just use all the memory that it wants. You wouldn't have f...
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Default text which won't be shown in drop-down list

I have a select which initially shows Select language until the user selects a language. When the user opens the select, I don't want it to show a Select language option, because it's not an actual option. ...
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How do you force Visual Studio to regenerate the .designer files for aspx/ascx files?

Sometimes when I'm editing page or control the .designer files stop being updated with the new controls I'm putting on the page. I'm not sure what's causing this to happen, but I'm wondering if there's any way of forcing Visual Studio to regenerate the .designer file. I'm using Visual Studio 2008 ...
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Where and how is the _ViewStart.cshtml layout file linked?

... From ScottGu's blog: Starting with the ASP.NET MVC 3 Beta release, you can now add a file called _ViewStart.cshtml (or _ViewStart.vbhtml for VB) underneath the \Views folder of your project: The _ViewStart file can be used to define common view co...
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Understanding the Event Loop

I am thinking about it and this is what I came up with: 3 Answers 3 ...
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How to call erase with a reverse iterator

...ard [24.4.1/1] the relationship between i.base() and i is: &*(reverse_iterator(i)) == &*(i - 1) (from a Dr. Dobbs article): So you need to apply an offset when getting the base(). Therefore the solution is: m_CursorStack.erase( --(i.base()) ); EDIT Updating for C++11. reverse_iter...