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MySQL CONCAT returns NULL if any field contain NULL
...ate_name`,''),'-',COALESCE(`model`,''),'-',COALESCE(`ip`,''),'-',COALESCE(`os_type`,''),'-',COALESCE(`os_version`,'')) AS device_name
FROM devices
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How do I make python wait for a pressed key?
... the user to press enter though.
One might want to use msvcrt ((Windows/DOS only) The msvcrt module gives you access to a number of functions in the Microsoft Visual C/C++ Runtime Library (MSVCRT)):
import msvcrt as m
def wait():
m.getch()
This should wait for a key press.
Additional info:...
GDB missing in OS X v10.9 (Mavericks)
I went to use GDB in OS X v10.9 (Mavericks), and it's not there. Where has it gone?
12 Answers
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Launch an app on OS X with command line
I want to launch an app on OSX from a script. I need pass it command line arguments. Unfortunately, open doesn't accept command line args.
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How to copy a selection to the OS X clipboard
I have an area selected in Vim. How can I copy it into the OS X clipboard?
27 Answers
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MFC OnEraseBkgnd浅析 - C/C++ - 清泛网 - 专注C/C++及内核技术
...绘一小部分，这种情况可能么？有可能，比如你通过点击一个按钮来刷新整个窗口，重新绘制的有效区域要比刷新之前小，这些不重叠的区域在重载OnEraseBkgnd()函数之前会变作白色，而重载之后会保持原来的样子。
下面说两种...
OS X Terminal Colors [closed]
I'm new to OS X, having just gotten a Mac after working with Ubuntu Linux for some time. Among the many things I'm trying to figure out is the absence of colors in my terminal window - like the ones that are shown (on Linux) when running ls -la or git status ...
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Authorize a non-admin developer in Xcode / Mac OS
I use a standard user account for my daily tasks on Mac OS. Since upgrading to Snow Leopard I am asked to do the following when a program is run from within Xcode:
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Display numbers with ordinal suffix in PHP
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Do you know if it is possible to get the ordinal number in word form? i.e. first, second, third, etc. instead of 1st, 2nd, 3rd...
– its_me
Oct 16 '13 at 19:05
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How many GCC optimization levels are there?
... while maintaining fast compilation and a good debugging experience.)
-Os (Optimize for size. -Os enables all -O2 optimizations that do not typically increase code size. It also performs further optimizations
designed to reduce code size.
-Os disables the following optimization flags: -falign-fu...