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Entity Framework 4 - AddObject vs Attach

I have been working with Entity Framework 4 recently, and am slightly confused as to when to use ObjectSet.Attach , and ObjectSet.AddObject . ...
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What is the strict aliasing rule?

When asking about common undefined behavior in C , people sometimes refer to the strict aliasing rule. What are they talking about? ...
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Why does Dijkstra's algorithm use decrease-key?

Dijkstra's algorithm was taught to me was as follows 3 Answers 3 ...
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Rename MySQL database [duplicate]

I created a database with the name of hrms . Now I need to change database name to sunhrm . But, It is disabled in MySQL workbench. Can I do that on the Linux server itself? ...
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Foreign keys in mongo?

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Histogram Matplotlib

So I have a little problem. I have a data set in scipy that is already in the histogram format, so I have the center of the bins and the number of events per bin. How can I now plot is as a histogram. I tried just doing ...
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How do I get Month and Date of JavaScript in 2 digit format?

When we call getMonth() and getDate() on date object, we will get the single digit number . For example : 28 Answers...
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Unix's 'ls' sort by name

Can you sort an ls listing by name? 11 Answers 11 ...
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Warning :-Presenting view controllers on detached view controllers is discouraged

In my app, I am using a navigation controller. Later on in some view I am using presentViewController for showing a zoomed image. Also I am not using a Storyboard or nib. ...
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How to get root access on Android emulator?

I have All Android SDK versions(from 1.5 to 2.3.3), and I tried many methods for getting root in Android emulator. I don't use any Android device and test everything on emulator(AVD). ...