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Unique Constraint in Entity Framework Code First

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Java Round up Any Number

I can't seem to find the answer I'm looking for regarding a simple question: how do I round up any number to the nearest int ? ...
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dpi value of default “large”, “medium” and “small” text views android

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Make a program run slowly

Is there any way to run a C++ program slower by changing any OS parameters in Linux? In this way I would like to simulate what will happen if that particular program happens to run on a real slower machine. ...
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Rebase feature branch onto another feature branch

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Pandas - Get first row value of a given column

... seems like a ridiculously easy question... but I'm not seeing the easy answer I was expecting. 7 Answers ...
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Get difference between 2 dates in JavaScript? [duplicate]

How do I get the difference between 2 dates in full days (I don't want any fractions of a day) 6 Answers ...
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In which scenario do I use a particular STL container?

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How to export DataTable to Excel

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Show MySQL host via SQL Command

All good and well, but is it possible to show the current connections host. Not connection_id, but the IP Address or Name of the host. ...