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MySQL: how to get the difference between two timestamps in seconds
...tistics`
https://dev.mysql.com/doc/refman/5.7/en/date-and-time-functions.html#function_timestampdiff
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Format number to 2 decimal places
...E command.
https://dev.mysql.com/doc/refman/8.0/en/mathematical-functions.html#function_truncate
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How to duplicate sys.stdout to a log file?
...ush()
from: http://mail.python.org/pipermail/python-list/2007-May/438106.html
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MySQL Fire Trigger for both Insert and Update
...I'd suggest starting with dev.mysql.com/doc/refman/5.1/en/create-procedure.html (which includes some examples) and asking your own question(s) if needed.
– derobert
Jul 1 '11 at 5:21
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What is the difference between gravity and layout_gravity in Android?
...ity of that View. Specifies in which direction its contents should align.
HTML/CSS Equivalents
Android | CSS
————————————————————————+————————————
android:layout_gravity | float
android:gravity | text-...
Get and set position with jQuery .offset()
...t = redBox.offset();
$(".post1").css({'left': +offset.left});
$(".post1").html("Left :" +offset.left);
http://jsfiddle.net/va836/159/
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Python Matplotlib figure title overlaps axes label when using twiny
...e
after
reference:
https://matplotlib.org/users/tight_layout_guide.html
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Java8 Lambdas vs Anonymous classes
...on lambda's.
http://radar.oreilly.com/2014/04/whats-new-in-java-8-lambdas.html
It's advisable to use lambda functions for simple logics. If implementing complex logic using lambdas will be a overhead in debugging the code in case of issue.
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How do I make an asynchronous GET request in PHP?
...ed from http://petewarden.typepad.com/searchbrowser/2008/06/how-to-post-an.html
function curl_post_async($url, $params)
{
foreach ($params as $key => &$val) {
if (is_array($val)) $val = implode(',', $val);
$post_params[] = $key.'='.urlencode($val);
}
$post_string = ...
What is a .h.gch file?
...precompiled headers:
http://gcc.gnu.org/onlinedocs/gcc/Precompiled-Headers.html
b) They contain "cached" information from .h files and should be updated every time you change respective .h file. If it doesn't happen - you have wrong dependencies set in your project
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