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quick random row selection in Postgres
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You might want to experiment with OFFSET, as in
SELECT myid FROM mytable OFFSET floor(random()*N) LIMIT 1;
The N is the number of rows in mytable. You may need to first do a SELECT COUNT(*) to figure out the value of N.
Update (by Antony Hatchkins)
You must use floor here:
SELE...
jQuery checkbox checked state changed event
I want an event to fire client side when a checkbox is checked / unchecked:
10 Answers
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What is the difference between ApplicationContext and WebApplicationContext in Spring MVC?
... Context) :
Every Spring MVC web application has an applicationContext.xml file which is configured as the root of context configuration. Spring loads this file and creates an applicationContext for the entire application.
This file is loaded by the ContextLoaderListener which is configured as a con...
How to get body of a POST in php?
...y body of a POST or PUT request (or any other HTTP method):
$entityBody = file_get_contents('php://input');
Also, the STDIN constant is an already-open stream to php://input, so you can alternatively do:
$entityBody = stream_get_contents(STDIN);
From the PHP manual entry on I/O streamsdocs:
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【精心整理】【实用】visual C++中最常用的类与API函数 - C/C++ - 清泛网 -...
...个CArchive对象
CArchive(CFile* pFile,UINT nMode,int nBufSize=4096,void* lpBuf=NULL);
参数：pFile 指向CFile对象的指针，这个CFile对象是数据的最终源或目的；
nMode是标志，取值为CArchive::load时，从文档中加载数据（要求CFile读许可），取值为CArch...
Use Font Awesome Icon As Favicon
...he formats supported by each browser: http://en.wikipedia.org/wiki/Favicon#File_format_support
If your characters are image or vector files, you'll be ok with most browsers but IE (because MS hates you). Otherwise, well, you'll really have to save them as images first.
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How to use npm with node.exe?
...-bit version is your best bet
The install path for 32-bit node is "Program Files (x86)" in 64-bit windows.
You may also need to add quotes to the path statement in environment variables, this only seems to be in some cases that I've seen.
In Windows, the global install path is actually in your user'...
IIS7: HTTP->HTTPS Cleanly
...ork as expected in IIS7 and I didn't
try to debug this. Instead, I put the file in the root folder of the site and used
the url '/SSLRedirect.asp' in the
403.4 error page to reference it.
Last, the most tricky part, you must NOT enforce SSL for SSLRedirect.asp. Otherwise you'll get an 403.4 error. T...
Failed to import new Gradle project: failed to find Build Tools revision *.0.0
... Android SDK Build-tools. Run as administrator so it can manipulate local files.
– Dale
Mar 24 '16 at 13:11
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How can Xcode 6 adaptive UIs be backwards-compatible with iOS 7 and iOS 6?
...ould have been clearer. I think he must have meant that the XIB/Storyboard files can be read by iOS 6 and 7, but without support for adaptive UI. It makes coding for apps that run on iOS < 8 problematic.
– Duncan C
Jun 21 '14 at 14:09
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