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How to concatenate text from multiple rows into a single text string in SQL server?
Consider a database table holding names, with three rows:
47 Answers
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When do I really need to use atomic instead of bool? [duplicate]
Isn't atomic<bool> redundant because bool is atomic by nature? I don't think it's possible to have a partially modified bool value. When do I really need to use atomic<bool> instead of bool ?
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C++ Singleton design pattern
Recently I've bumped into a realization/implementation of the Singleton design pattern for C++. It has looked like this (I have adopted it from the real life example):
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Response.Redirect with POST instead of Get?
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Doing this requires understanding how HTTP redirects work. When you use Response.Redirect(), you send a response (to the browser that made the request) with HTTP Status Code 302, which tells the browser where to go next. By definition, the browser will make tha...
What is the fastest way to check if a class has a function defined?
...a function invert_opt defined. Here is the documentation for you to graze
https://docs.python.org/2/library/functions.html#hasattr
https://docs.python.org/3/library/functions.html#hasattr
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Deleting all files from a folder using PHP?
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This code from http://php.net/unlink:
/**
* Delete a file or recursively delete a directory
*
* @param string $str Path to file or directory
*/
function recursiveDelete($str) {
if (is_file($str)) {
return @unlink($str);
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How to calculate the CPU usage of a process by PID in Linux from C?
I want to programmatically [in C] calculate CPU usage % for a given process ID in Linux.
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How to prevent line break at hyphens on all browsers
...-BREAKING HYPHEN (U+2011).
HTML: &#x2011; or &#8209;
Also see: http://en.wikipedia.org/wiki/Hyphen#In_computing
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Quick easy way to migrate SQLite3 to MySQL? [closed]
Anyone know a quick easy way to migrate a SQLite3 database to MySQL?
17 Answers
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Why use pip over easy_install? [closed]
A tweet reads:
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