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MongoDB SELECT COUNT GROUP BY
...expression, then computes the count of documents in each distinct group.
https://docs.mongodb.com/manual/reference/operator/aggregation/sortByCount/
For example:
db.contest.aggregate([
{ $sortByCount: "$province" }
]);
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Fastest way to count exact number of rows in a very large table?
...
It's a lucky thing that Google managers are more reasonable than your boss... Picture how slow it would be if it returned the exact number of search results for each of your queries instead of sticking to an estimate number.
– ...
How can you profile a Python script?
...
The python wiki is a great page for profiling resources:
http://wiki.python.org/moin/PythonSpeed/PerformanceTips#Profiling_Code
as is the python docs:
http://docs.python.org/library/profile.html
as shown by Chris Lawlor cProfile is a great tool and can easily be used to print to ...
How does Trello access the user's clipboard?
... What I am missing?
Sovled thanks to VadimIvanov.
See a working example:
http://jsfiddle.net/AGEf7/
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What is “origin” in Git?
...wing command prompt:
git remote rename origin mynewalias
Take a look at http://git-scm.com/docs/git-remote for further clarifications.
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Return Boolean Value on SQL Select Statement
... WHEN COUNT(*) > 0 THEN 1 ELSE 0 END AS BIT)
FROM dummy WHERE id = 1;
http://sqlfiddle.com/#!3/5e555/1
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CSS Display an Image Resized and Cropped
...5px 0 0 -100px;
}
<div class="crop">
<img src="https://i.stack.imgur.com/wPh0S.jpg" alt="Donald Duck">
</div>
You can use negative margin to move the image around within the <div/>.
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Why is it slower to iterate over a small string than a small list?
...eUploader: {
brandingHtml: "Powered by \u003ca href=\"https://imgur.com/\"\u003e\u003csvg class=\"svg-icon\" width=\"50\" height=\"18\" viewBox=\"0 0 50 18\" fill=\"none\" xmlns=\"http://www.w3.org/2000/svg\"\u003e\u003cpath d=\"M46.1709 9.17788C46.1709 8.26454 46.2665 7.94324 4...
Password reset for Azure database
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Using the new azure portal:
https://portal.azure.com
Click browse (to view all resources)
Select SQL databases
Choose a database that's in the server you want to change creds for.
Select the server name url for that selected database. This should...
How to keep up with the latest versions of Node.js in Ubuntu? PPA? Compiling?
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Most up-to-date ppa for nodejs https://launchpad.net/~chris-lea/+archive/node.js/
sudo add-apt-repository ppa:chris-lea/node.js
sudo apt-get update
sudo apt-get install nodejs
NOTE: If your system does not have add-apt-repository, it can be installe...