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Difference Between One-to-Many, Many-to-One and Many-to-Many?

... so this is probably a trivial question but I'm having trouble visualizing and understanding the differences and when to use each. I'm also a little unclear as to how concepts like uni-directional and bi-directional mappings affect the one-to-many/many-to-many relationships. I'm using Hibernate righ...
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Change IPython/Jupyter notebook working directory

... That worked for me on windows 10 pro. Just open CMD and type: jupyter notebook --notebook-dir="D:\change_this_path" – TharsDimitris Dec 14 '18 at 9:11 ...
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How to handle back button in activity

How to handle a back button in an activity? I have some buttons. If I click one of the button it's redirecting to the buttons which I required. It's working fine but When I press back button it gets finished. ...
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Under what circumstances are linked lists useful?

... with a single CAS (+retries). In a modern GC-d environment - such as Java and .NET - the ABA problem can easily be avoided. Just wrap items you add in freshly created nodes and do not reuse those nodes - let the GC do its work. The page on the ABA problem also provides the implementation of a lock...
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How to redirect output of an entire shell script within the script itself?

...ll of the output of a Bourne shell script to somewhere, but with shell commands inside the script itself? 5 Answers ...
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What is that “total” in the very first line after ls -l? [closed]

...m does not mention that line, but info coreutils ls does. How comes man ls and info coreutils ls have different information about the same command? Why isn't ls just documented once? Having two different documentations for the same command seems like set up for failure. – Hello...
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How to flip background image using CSS?

...problem in this. it's flipping the text also which is inside the <a> and I only want to flip the background image. The code you give is to flip the whole element – Jitendra Vyas Apr 24 '11 at 6:41 ...
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std::string to float or double

... The Standard Library (C++11) offers the desired functionality with std::stod : std::string s = "0.6" std::wstring ws = "0.7" double d = std::stod(s); double dw = std::stod(ws); Generally for most other basic types, see <st...
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How to install therubyracer gem on 10.10 Yosemite?

... It's also worth mentioning that if you're using a Gemfile and still having trouble installing therubyracer, it's probably because there's a different version of libv8 that's already been added to the Gemfile.lock. Just add gem 'libv8', '3.16.14.3' (or whatever is the exact version o...
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How do I style a dropdown with only CSS?

...s very good browser support (caniuse) - except for Internet Explorer 11 (and later) and Firefox 34 (and later). We can improve this technique and add support for Internet Explorer 10 and Internet Explorer 11 by adding select::-ms-expand { display: none; /* Hide the default arrow in Interne...