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What is NoSQL, how does it work, and what benefits does it provide? [closed]
...replacement for SQL DB storage methods due to the fact that DB interaction is often a bottle neck for speed on the web.
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Difference between Inheritance and Composition
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They are absolutely different. Inheritance is an "is-a" relationship. Composition is a "has-a".
You do composition by having an instance of another class C as a field of your class, instead of extending C. A good example where composition would've been a lot better t...
How to overload std::swap()
std::swap() is used by many std containers (such as std::list and std::vector ) during sorting and even assignment.
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Using try vs if in python
Is there a rationale to decide which one of try or if constructs to use, when testing variable to have a value?
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What is Unicode, UTF-8, UTF-16?
What's the basis for Unicode and why the need for UTF-8 or UTF-16?
I have researched this on Google and searched here as well but it's not clear to me.
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INSERT INTO vs SELECT INTO
What is the difference between using
10 Answers
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How to analyze a java thread dump?
...and more about java, especially about memory management and threads.
For this reason I have recently found interest in looking at thread dumps.
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Python Infinity - Any caveats?
... in ?
OverflowError: (34, 'Numerical result out of range')
The inf value is considered a very special value with unusual semantics, so it's better to know about an OverflowError straight away through an exception, rather than having an inf value silently injected into your calculations.
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How to determine when Fragment becomes visible in ViewPager
Problem: Fragment onResume() in ViewPager is fired before the fragment becomes actually visible.
26 Answers
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Servlet returns “HTTP Status 404 The requested resource (/servlet) is not available”
...s servlet.java in my default package in src folder. In my web.xml it is mapped as /servlet .
12 Answers
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