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MySQL show current connection info
...statement:
SELECT DATABASE();
Other useful functions can be found here: http://dev.mysql.com/doc/refman/5.0/en/information-functions.html
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fol...
Where does Jenkins store configuration files for the jobs it runs?
... You can download the config file from a Jenkins node by running: curl http://<ip-address>:8080/job/<job-name>/config.xml > jenkins_config.xml
– JESii
Mar 17 '16 at 14:38
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Nested or Inner Class in PHP
... did not make it (No voting yet, no update since 2013 - as of 2016/12/29):
https://wiki.php.net/rfc/nested_classes
class foo {
public class bar {
}
}
At least, anonymous classes made it into PHP 7
https://wiki.php.net/rfc/anonymous_classes
From this RFC page:
Future Scope
The changes mad...
PostgreSQL query to return results as a comma separated list
...column names as CSV column headers, and the query tuples as CSV rows.
h/t http://pookey.co.uk/wordpress/archives/51-outputting-from-postgres-to-csv
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JS - get image width and height from the base64 code
....naturalHeight had the best results.
const img = new Image();
img.src = 'https://via.placeholder.com/350x150';
img.onload = function() {
const imgWidth = img.naturalWidth;
const imgHeight = img.naturalHeight;
console.log('imgWidth: ', imgWidth);
console.log('imgHeight: ', imgHeight);
};
...
github markdown colspan
...closing </td> for speed, оr can leave for consistency.
Result from http://markdown-here.com/livedemo.html :
Works in Jupyter Markdown.
Update:
As of 2019 year all pipes in the second line are compulsory in Jupyter Markdown.
| One | Two | Three | Four | Five | Six
|-|-|-|-|-|-
| S...
Which is fastest? SELECT SQL_CALC_FOUND_ROWS FROM `table`, or SELECT COUNT(*)
...
According to the following article: https://www.percona.com/blog/2007/08/28/to-sql_calc_found_rows-or-not-to-sql_calc_found_rows/
If you have an INDEX on your where clause (if id is indexed in your case), then it is better not to use SQL_CALC_FOUND_ROWS and us...
Is there a standard sign function (signum, sgn) in C/C++?
...unction that returns -1 for negative numbers and +1 for positive numbers.
http://en.wikipedia.org/wiki/Sign_function
It's easy enough to write my own, but it seems like something that ought to be in a standard library somewhere.
...
Using the “animated circle” in an ImageView while loading stuff
...?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
tools:cont...
Why does base64 encoding require padding if the input length is not divisible by 3?
... a base converter for arbitrary base conversion I created for you. Enjoy!
https://convert.zamicol.com/
What are Padding Characters?
Padding characters help satisfy length requirements and carry no meaning.
Decimal Example of Padding:
Given the arbitrary requirement all strings be 8 characters ...