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NoSql vs Relational database

...nal. For those situations, NoSQL can be helpful. With that said, NoSQL stands for "Not Only SQL". It's not intended to knock SQL or supplant it. SQL has several very big advantages: Strong mathematical basis. Declarative syntax. A well-known language in Structured Query Language (SQL). Th...
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Ternary operator is twice as slow as an if-else block?

... answer this question, we'll examine the assembly code produced by the X86 and X64 JITs for each of these cases. X86, if/then 32: foreach (int i in array) 0000007c 33 D2 xor edx,edx 0000007e 83 7E 04 00 cmp dword ptr [esi+4],0 00000082 ...
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Deep copy of a dict in python

... Is there any difference in Python 3.2 and 2.7 codes? They seem identical to me. If so, would be better a single block of code and a statement "Works for both Python 3 and 2" – MestreLion Jun 7 '14 at 3:59 ...
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Coroutine vs Continuation vs Generator

What is the difference between a coroutine and a continuation and a generator ? 3 Answers ...
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How to create a custom attribute in C#

I have tried lots of times but still I am not able to understand the usage of custom attributes (I have already gone through lots of links). ...
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What is the difference between onPause() and onStop() of Android Activites?

From android doc here http://developer.android.com/reference/android/app/Activity.html , it said 'Activity comes into foreground' will call onPause() , and 'Activity is no longer visible' will call onStop() . ...
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How do I make the first letter of a string uppercase in JavaScript?

...ility (hard to find out where the function is being added to the prototype and could cause conflicts if other code uses the same name / a browser adds a native function with that same name in future). ...and then, there is so much more to this question when you consider internationalisation, as thi...
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Cancel a UIView animation?

... is to create a new animation to your end point. Set a very short duration and make sure you use the +setAnimationBeginsFromCurrentState: method to start from the current state. When you set it to YES, the current animation is cut short. Looks something like this: [UIView beginAnimations:nil contex...
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Convert floats to ints in Pandas?

I've been working with data imported from a CSV. Pandas changed some columns to float, so now the numbers in these columns get displayed as floating points! However, I need them to be displayed as integers, or, without comma. Is there a way to convert them to integers or not display the comma? ...
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Why does an SSH remote command get fewer environment variables then when run manually? [closed]

I have a command that runs fine if I ssh to a machine and run it, but fails when I try to run it using a remote ssh command like : ...