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How to select only date from a DATETIME field in MySQL?
...ate,'%y-%m-%d') from tablename
for time zone
sql2 = "SELECT DATE_FORMAT(CONVERT_TZ(CURDATE(),'US/Central','Asia/Karachi'),'%Y-%m-%d');"
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foll...
Python - List of unique dictionaries
... is to use Python's set class. Just add all the elements to the set, then convert the set to a list, and bam the duplicates are gone.
The problem, of course, is that a set() can only contain hashable entries, and a dict is not hashable.
If I had this problem, my solution would be to convert each ...
How to resize a VirtualBox vmdk file
...ansion, not readily available inside the vmdk's OS (step 3,4,5)
STEPS:
1) convert to ".vdi" first - VBoxManage clonehd v1.vmdk v1.vdi --format vdi
2) expand the size using command-line (Ref: tvial's blog for step by step info)
OR
expand from the Virtual Media Manager in VirtualBox.
[ NOW - INSIDE V...
git-diff to ignore ^M
... \n as a newline character in git-handled repos. There's an option to auto-convert:
$ git config --global core.autocrlf true
Of course, this is said to convert crlf to lf, while you want to convert cr to lf. I hope this still works …
And then convert your files:
# Remove everything from the i...
How to pass an object from one activity to another on Android
...
Using global static variables is not good software engineering practice.
Converting an object's fields into primitive data types can be a hectic job.
Using serializable is OK, but it's not performance-efficient on the Android platform.
Parcelable is specifically designed for Android and you shou...
How to install MySQLdb (Python data access library to MySQL) on Mac OS X?
...-10.5-i386.egg/_mysql.pyc, but XXXX/MySQL-python-1.2.3c1 is being added to sys.path
This is pretty easy to Google, but to save you the trouble you will end up here (or maybe not... not a particularly future-proof URL) and figure out that you need to cd .. out of build directory and the error should...
How do I grab an INI value within a shell script?
...rrors, ignore them by adding: 2>/dev/null
See also:
How to parse and convert ini file into bash array variables? at serverfault SE
Are there any tools for modifying INI style files from shell script
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MYSQL OR vs IN performance
...
I think the BETWEEN will be faster since it should be converted into:
Field >= 0 AND Field <= 5
It is my understanding that an IN will be converted to a bunch of OR statements anyway. The value of IN is the ease of use. (Saving on having to type each column name multip...
Programmatically Lighten or Darken a hex color (or rgb, and blend colors)
...hter, or blend it with a second color, and can also pass it right thru but convert from Hex to RGB (Hex2RGB) or RGB to Hex (RGB2Hex). All without you even knowing what color format you are using.
This runs really fast, probably the fastest, especially considering its many features. It was a long tim...
Simple and fast method to compare images for similarity
...ive error between images.
double errorL2 = norm( A, B, CV_L2 );
// Convert to a reasonable scale, since L2 error is summed across all pixels of the image.
double similarity = errorL2 / (double)( A.rows * A.cols );
return similarity;
}
else {
//Images have a different size
ret...