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Kill a postgresql session/connection
...
With all infos about the running process:
SELECT *, pg_terminate_backend(pid)
FROM pg_stat_activity
WHERE pid <> pg_backend_pid()
AND datname = 'my_database_name';
...
Resize image in PHP
...$image;
var $image_type;
function load($filename) {
$image_info = getimagesize($filename);
$this->image_type = $image_info[2];
if( $this->image_type == IMAGETYPE_JPEG ) {
$this->image = imagecreatefromjpeg($filename);
} elseif( $this->image_ty...
How can I reorder my divs using only CSS?
...</div>
<div id="c">C</div>
</div>
More info: https://developer.mozilla.org/en-US/docs/Web/CSS/order
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Config Error: This configuration section cannot be used at this path
..."Turn windows features on or off"
in the features window, Click: "Internet Information Services"
Click: "World Wide Web Services"
Click: "Application Development Features"
Check (enable) the features. I checked all but CGI.
btw, I'm using Windows 7. Many comments over the years have certified this ...
How to tell if a browser is in “quirks” mode?
...era you can determine if your browser is in "quirks mode" by checking page info.
Using document.compatMode, will tell you the mode you are in with most browsers.
In Chrome, Safari, and IE, run this javascript in the address bar:
javascript:window.alert('You are in ' + (document.compatMode==='CSS...
How to mark a build unstable in Jenkins when running shell scripts
...n be done without printing magic strings and using TextFinder. Here's some info on it.
Basically you need a .jar file from http://yourserver.com/cli available in shell scripts, then you can use the following command to mark a build unstable:
java -jar jenkins-cli.jar set-build-result unstable
To...
Laravel Schema onDelete set null
...
This is a known issue in Laravel. More info about this here.
This feature is not supported in SQLite, see here
Also a topic that has a detailed showdown of this problem
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How do I make a delay in Java?
...
You need to use the Thread.sleep() call.
More info here: http://docs.oracle.com/javase/tutorial/essential/concurrency/sleep.html
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How do I download a file over HTTP using Python?
...split('/')[-1]
u = urllib2.urlopen(url)
f = open(file_name, 'wb')
meta = u.info()
file_size = int(meta.getheaders("Content-Length")[0])
print "Downloading: %s Bytes: %s" % (file_name, file_size)
file_size_dl = 0
block_sz = 8192
while True:
buffer = u.read(block_sz)
if not buffer:
br...
difference between throw and throw new Exception()
... original exception but resets the stack trace, destroying all stack trace information until your catch block.
NEVER write throw ex;
throw new Exception(ex.Message); is even worse. It creates a brand new Exception instance, losing the original stack trace of the exception, as well as its type. (...