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MySQL: @variable vs. variable. What's the difference?

In another question I posted someone told me that there is a difference between: 4 Answers ...
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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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How to check if an object is a generator object in python?

In python, how do I check if an object is a generator object? 9 Answers 9 ...
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How to complete a git clone for a big project on an unstable connection?

I am trying to git clone the LibreOffice codebase, but at the moment I have an internet connection of about 300kbps and it's just anything but stable. I can get the connection back any moment, but then the git clone process already stopped working, and no way to get it running again. Is there some w...
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Check if a program exists from a Makefile

How can I check if a program is callable from a Makefile? 12 Answers 12 ...
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How to write a Python module/package?

I've been making Python scripts for simple tasks at work and never really bothered packaging them for others to use. Now I have been assigned to make a Python wrapper for a REST API. I have absolutely no idea on how to start and I need help. ...
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In which scenario do I use a particular STL container?

I've been reading up on STL containers in my book on C++, specifically the section on the STL and its containers. Now I do understand each and every one of them have their own specific properties, and I'm close to memorizing all of them... But what I do not yet grasp is in which scenario each of the...
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When is the init() function run?

I've tried to find a precise explanation of what the init() function does in Go. I read what Effective Go says but I was unsure if I understood fully what it said. The exact sentence I am unsure is the following: ...
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How should I validate an e-mail address?

What's a good technique for validating an e-mail address (e.g. from a user input field) in Android? org.apache.commons.validator.routines.EmailValidator doesn't seem to be available. Are there any other libraries doing this which are included in Android already or would I have to use RegExp? ...
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Dump a NumPy array into a csv file

Is there a way to dump a NumPy array into a CSV file? I have a 2D NumPy array and need to dump it in human-readable format. ...